Astonishment of the Mask Wouse: Introduction
A tall, elaborately dressed figure has entered a room where the floor seems to have swallowed a masquerade. Masks stare from the boards and edges; clothes, instruments and a bottle lie in disarray; a skeleton raises a candle. James Ensor supplies the visual ingredients of an interrupted event but withholds the event itself. Even the title, Astonishment of the Mask Wouse, leaves a basic question unanswered: who—or what—is Wouse?[1]
Painted in 1889, the scene is funniest and strangest when its uncertainty is allowed to remain. It might show a woman wearing a mask, a mask behaving like a woman, or a collection of studio props abruptly granted life. Each possibility changes the others.
At a Glance
- ArtistJames Ensor (1860–1949).
- Date and medium1889, oil on canvas, signed and dated “Ensor 1889” at lower left.[1]
- Dimensions109 × 131.5 cm.[1]
- CollectionRoyal Museum of Fine Arts Antwerp (KMSKA), inventory 2042.[1]
- SettingAn attic-studio interior filled with clothing, musical instruments, masks and a candle-bearing skeleton.[1]
- Identity cautionKMSKA does not settle which presence is Wouse or what narrative connects the figures.[1]
James Ensor in context
The Oyster Eater
1882Self-Portrait with Flowered Hat
c. 1885–88The Intrigue
1890Contents
- Introduction
- At the Threshold of an Interrupted Room
- Wouse’s Costume and Performed Status
- Instruments, Fabrics and the Skeleton’s Candle
- The Attic Studio: Place, Memory and Invention
- Who—or What—Is Wouse?
- Caricature, Theatre and Possible Sources
- 1889 in Ensor’s Mask Sequence
- KMSKA, Object Identity and Collection History
- How to Look Without Solving the Room
At the Threshold of an Interrupted Room
The main figure is shown at full length and in profile, as if she has just crossed a threshold. Her upright posture separates her from the collapsed objects below, yet her mask-like face connects her to them. One hand carries a parasol over the shoulder; the other seems to open toward the room in a gesture of surprise or inquiry.[1][2]
That entrance gives the painting a before and after without depicting either. Something may have been happening before Wouse arrived. The music may have stopped; the masks may have fallen; the apparent performers may be exhausted. Xavier Tricot’s institutional essay develops just such a possibility, imagining an ongoing masquerade interrupted by the newcomer. Its conditional language matters. The canvas provides abandoned instruments and astonished expressions, but it does not verify that those props were moving seconds earlier.[2]
The viewer occupies a similarly uncertain threshold. We see enough to begin a story but not enough to finish one. There is no reliable witness inside the painting: every face is exaggerated, masked or skeletal. The title designates astonishment without identifying its cause.
Wouse’s Costume and Performed Status
KMSKA describes the principal figure as a parody of a femme fatale. Black gloves, a red parasol, a light blue dress and a costly Indian shawl suggest stylish display, while a cap beneath the hat and an absurd nasal detail disrupt that elegance. A small head appears from the shawl, adding another visual puzzle.[1] These details create contradiction rather than a coherent social portrait.
Costume makes the figure legible as a type but not as a person. She is grand and ridiculous, imposing and bewildered. The parasol provides a strong diagonal accent, the draped garments enlarge her silhouette, and the fixed face prevents her expression from changing as the eye moves across the scene.
Calling her a “woman” is convenient for description, but the painting complicates even that category. Tricot asks whether the figure is a living person wearing a Carnival mask or an independent mask that has somehow acquired a body.[2] The latter reading is not a supernatural fact about the depicted world. It names the visual paradox: Ensor makes an object appear to enter, gesture and react.
The guide to Ensor’s masks, Carnival and satire follows this exchange between prop and actor across his work. Here it is concentrated in one full-length figure whose clothing implies a body while the face retains the rigidity of a manufactured thing.
Instruments, Fabrics and the Skeleton’s Candle
The plank floor functions like a display surface. Tricot identifies a violin, clarinet, empty bottle, fan, top hat, patchwork fabric and several masks among the scattered things.[2] KMSKA groups them as the remains of clothing, music and Carnival in an arrangement resembling still life.[1] They can be inventoried, but their relations remain unstable.
Musical instruments imply sound without producing it. An empty bottle can suggest drinking, fatigue or nothing more than a used prop. A fan and hat point toward costume. The masks seem to look, even when no visible body supports them. This is how Ensor turns still-life placement into theatre: an angle becomes a gesture, an eyehole becomes a gaze, and proximity creates an apparent exchange.
The skeleton in the foreground raises a candle, combining two incompatible roles. As skeletal remains, it signifies lifelessness; as a candle-bearer, it performs a deliberate action. The flame also evokes illumination, but it does not explain the room. Instead, the skeleton offers just enough light to make the surrounding uncertainty visible.
KMSKA asks whether the forms at Wouse’s feet are drunken musicians exhausted after singing or lifeless victims of her doubtful charms.[1] Those alternatives demonstrate how readily props become characters. Neither should be presented as the scene’s hidden solution.
The Attic Studio: Place, Memory and Invention
KMSKA locates the action on the floorboards of Ensor’s attic studio.[1] A biographical account records that he established a studio in the attic of his parents’ Ostend home in 1880.[4] The family’s souvenir and curiosity trade made masks and unusual objects part of his immediate environment, while Ostend’s Carnival culture offered public examples of costume and transformed identity.[3][4]
That context makes the room plausible without turning the painting into a photograph of it. Ensor selected, rearranged and animated familiar materials. The attic can be both a real working place and an invented stage. Its floor receives things that could belong to an artist’s store of props, but their painted encounter follows compositional rather than documentary logic.
An archived thematic overview also notes that Ensor sometimes added mask attributes to older pictures, including this work.[3] That statement places Astonishment of the Mask Wouse within a practice of revision, but the accessible sources here do not provide a complete layer-by-layer chronology for every figure. It is safest to state that the painting belongs to that reworking context without assigning unsupported dates to individual additions.
The broader account of Ensor’s biography helps prevent the “isolated attic visionary” myth. Although Ostend remained his base, he maintained Brussels friendships, participated in exhibition circles and drew on a wide range of visual culture.[4] The attic imagery was connected to a social and artistic world beyond the room.
Who—or What—Is Wouse?
The current museum page is admirably direct: it asks which figure is Wouse and how the scene should be understood, then answers that this is unknown.[1] Tricot’s essay leans toward the full-length principal figure as the named character, but immediately reopens the problem by asking whether she is a masked woman or a living mask.[2] The difference between those positions should remain visible.
The word itself supplies no secure key. Tricot surveys several possible origins, including a local nickname, an obsolete term, a place name and a literary association, while acknowledging that the evidence does not establish which—if any—Ensor intended.[2] Some of those leads depend on speculative or weak secondary material. They are useful as a record of inquiry, not as an etymology to repeat as fact.
Family identification is equally uncertain. Because Ensor caricatured relatives elsewhere, commentators have been tempted to see his mother or grandmother in the main figure. Tricot describes this as an inclination, not a documented identification.[2] No cited object record names either woman as the sitter. Resemblance, costume and family context cannot carry that claim on their own.
The unresolved name is part of the work’s effect. “Wouse” sounds specific enough to promise recognition, yet it identifies neither a verifiable person nor an agreed type. The title draws viewers toward interpretation, then denies them the reassurance of a stable label.
Caricature, Theatre and Possible Sources
The figure’s stretched features and contradictory costume connect the painting to caricature. Tricot places Ensor’s interests within British and French satirical traditions and proposes a comparison with an Honoré Daumier lithograph showing a male public figure travestied as an old marquise. The same essay notes Ensor’s familiarity with caricature heads and Carnival masks.[2]
This is a sourced visual hypothesis, not proof that one print generated the entire painting. Daumier offers a precedent for using costume, gendered role-play and facial exaggeration to unsettle public identity. Ensor’s room adds a different structure: scattered props and masks appear to watch the costumed entrant.
Theatre is present through implication rather than an identifiable script. Instruments, parasol, fan and patchwork could belong backstage; the scene resembles the instant after a performance has collapsed. KMSKA also raises possible seventeenth-century portrait and literary associations but phrases them as questions.[1] No surviving source used here identifies one play, anecdote or old-master picture as the definitive narrative.
1889 in Ensor’s Mask Sequence
The date places Astonishment of the Mask Wouse after the experimental surge of 1885–88 described in Ensor’s biography, when drawing, etching, grotesque motifs, skeletons and Carnival imagery became especially important.[4] An institutional mask overview distinguishes an early mask theme in 1883 from the more developed role masks acquired later in the decade.[3] The 1889 canvas belongs to that mature phase without defining a single meaning for the motif.
Comparison with nearby works clarifies its particular method. In Masks Confronting Death of 1888, MoMA describes masks clustered around a centrally placed, white-draped Death; the arrangement recalls still life, but the confrontation has one obvious focal figure.[5] Wouse’s room disperses attention among entrant, props, masks and skeleton.
The Intrigue of 1890 brings half-length figures together as a social group. KMSKA offers a Carnival party, wedding procession and public derision among its possible situations.[6] Its gestures connect bodies across a compressed foreground. Astonishment instead gives one standing figure room to enter while objects occupy the floor, making the uncertainty feel theatrical rather than crowd-driven.
Other works change identity by different means. In Self-Portrait with Flowered Hat, later costume additions recast Ensor’s visible face without covering it.[7] In Skeletons Fighting over a Pickled Herring, two skeletons behave like quarrelsome people on a tiny panel.[8] Together with the overview of Ensor’s paintings, these comparisons show that masks and bones are not one code. Their role changes with scale, setting and action.
KMSKA, Object Identity and Collection History
The secure object is KMSKA inventory 2042: Astonishment of the Mask Wouse, dated 1889, oil on canvas, 109 by 131.5 centimetres.[1] The current English title spells the name Wouse. “Wouze” is not the museum’s governing form.
The Flemish Art Collection essay states that the painting has belonged to KMSKA since 1926.[2] KMSKA now presents it as a major work and provides a downloadable reproduction through its object page.[1] Those collection facts do not resolve the iconography. Institutional ownership can establish title, date, medium, dimensions and inventory number while the depicted identities remain unknown.
How to Look Without Solving the Room
Start with the standing figure’s profile and follow her open hand toward the floor. Name the objects before assigning them roles. Then trace the gazes suggested by the loose masks and return to the candle-bearing skeleton. Ask which relationships are visibly established and which require an invented before-and-after.
The painting rewards several stories but confirms none. Its achievement lies in making a still-life arrangement feel interrupted, watched and responsive. Wouse may be the entrant, the mask or the mystery produced between them. Ensor keeps all three alive by refusing to decide for us.
Researched works directory
This searchable evidence census was assembled from public museum records and a reproducible Wikidata snapshot. It is not a catalogue raisonné, a claim to complete oeuvre coverage, or a substitute for Xavier Tricot's printed catalogue, which was not consulted for this directory.
| Name | Date | Medium |
|---|---|---|
| 1. Decor (uit: La Gamme d'Amour) | 1929 | |
| 10. Hélio (uit: La Gamme d'Amour) | 1911–1929 | |
| 11. Murmuramis (uit: La Gamme d'Amour) | 1912–1929 | |
| 12. Grimacet, Craco-Cigaret... (uit: La Gamme d'Amour) | 1929 | |
| 13.-14. Popofigue & Germina (uit: La Gamme d'Amour) | 1912–1929 | |
| 15. Puerilla & Pollen (uit: La Gamme d'Amour) | 1912–1929 | |
| 16. Muzikanten II (uit: La Gamme d'Amour) | 1929 | |
| 17. Vuurwerkboeket (uit: La Gamme d'Amour) | 1929 | |
| 18. De schelpen (uit: La Gamme d'Amour) | 1929 | |
| 19. Het Luminisme - het Kubisme - de Gravure (uit: La Gamme d'Amour) | 1912–1929 | |
| 2. Brutonne (uit: La Gamme d'Amour) | 1911–1929 | |
| 20. Spar - Huisje uit Neurenberg - Racket (uit: La Gamme d'Amour) | 1911–1929 | |
| 21. Duivel - Houten soldaat - Pop (uit: La Gamme d'Amour) | 1912–1929 | |
| 22. Cimbaalspelers (uit: La Gamme d'Amour) | 1917–1929 | |
| 3. Grognelet (uit: La Gamme d'Amour) | 1929 | |
| 3 studies van een dame met parasol | 1880 | Drawing |
| 4. Miamia (uit: La Gamme d'Amour) | 1929 | |
| 5. De bedelares (uit: La Gamme d'Amour) | 1929 | |
| 6. Fifrelin (uit: La Gamme d'Amour) | 1929 | |
| 7. Muzikanten (uit: La Gamme d'Amour) | 1911–1929 | |
| 8. Pituiton met de lange neus (uit: La Gamme d'Amour) | 1929 | |
| 9. Corylopsis (uit: La Gamme d'Amour) | 1911–1929 | |
| A Colourist | 1880 | Painting |
| A field with a working man and woman | Date unknown | Drawing |
| A Gust of Wind at the Edge of the Forest (Coup de vent a la lisiere) | 1888 | |
| A l'aube | 1880 | Drawing |
| A Man and a Woman | Date unknown | Drawing |
| A Path in a Wood | 1879 | Painting |
| Aanbidding door de koningen | 1921 | |
| Aanstormend leger | Date unknown | Drawing |
| Aantekeningen van James Ensor | Date unknown | Drawing |
| Acacia | 1888 | |
| Academic study of a nude | Date unknown | Drawing |
| Accacia | Date unknown | Drawing |
| Adam and Eve expelled from Paradise | 1887 | Painting |
| Adoration des Bergers | 1888 | |
| Affiche van "Salon des Cent", Parijs | 1888–1898 | |
| Affiche van "Salon des Cent", Parijs | 1898 | |
| Affiche voor het carnaval van Oostende | 1931 | |
| After the storm | 1880 | Painting |
| Afternoon in Ostend | 1881 | Painting |
| Album Containing Drawings and Illustrated Letters | 1883 | Drawing |
| Algérienne à la cruche | Date unknown | Drawing |
| Alimentation doctrinaire | 1889 | |
| Anatomische studie en twee figuren | Date unknown | Drawing |
| Anger | 1904 | |
| Anger (La colere) | 1904 | |
| Antiek pistool | Date unknown | Drawing |
| Antieke kop | 1870 | Drawing |
| Arabische ruiter door leeuw aangevallen | 1880 | Drawing |
| Arabische ruiter en paard | Date unknown | Drawing |
| Arabische ruiter in galop | Date unknown | Drawing |
| Arms and Hands | Date unknown | Drawing |
| Astonishment of the Mask Wouse | 1889 | Painting |
| Au conservatoire | 1902 | Painting |
| Auto-da-fe | 1893 | |
| Autoportrait auprès d'une lampe | 1886 | |
| Autumn Flowers | 1938 | Painting |
| Avarice | 1904 | |
| Avarice (L'avarice) | 1904 | |
| Azaleas | 1925 | Painting |
| Baby | Date unknown | Drawing |
| Baby en arm | 1870 | Drawing |
| Bacchanal | 1877 | Painting |
| Back of a Chair | 1880 | Painting |
| Badkoets, bruggetje en kleine marine | Date unknown | Drawing |
| Bal masqué à la Monnaie | Date unknown | Drawing |
| Ballet | 1921 | |
| Balletscène | 1900 | Drawing |
| Baptism of the Masks | 1891 | Painting |
| Baron James Ensor, his bad angel, his coat of arms | 1934 | Painting |
| Barques échouées | 1888 | |
| Bataille des éperons d'or | 1895 | |
| Bataille entre llion et tigre | 1880 | Drawing |
| Bateaux à vapeur, PK.MP.04898 | 1889 | |
| Bateaux à vapeur, PK.MP.04899 | 1889 | |
| Bathers (Curved and Wavy Lines) | 1916 | Painting |
| Bathing-hut | 1876 | Painting |
| Battle of the beggars Désir and Rissolé | 1888 | |
| Battle of the Beggars Desir and Rissole (Combat des pouilleux Desir et Rissole) | 1888 | |
| Battle of the Golden Spurs | 1890 | |
| Battle of the Golden Spurs | 1895 | |
| Battle of the Golden Spurs | 1897 | |
| Baviaan | Date unknown | Drawing |
| Beach at La Panne | 1904 | |
| Beached Boats | 1888 | |
| Bed met troonhemel | Date unknown | Drawing |
| Bedkast | Date unknown | Drawing |
| Beeldje op console | Date unknown | Drawing |
| Beggars Receiving Alms at the Door of a House | 1880 | Drawing |
| Bejaarde man | Date unknown | Drawing |
| Belgium in the Nineteenth Century | Date unknown | Drawing |
| Belgium in the XIXth Century | 1889 | |
| Berceuse de mon ballet: La gamme d'amour | Date unknown | Drawing |
| Bergpad | Date unknown | Drawing |
| Bibelots | 1935 | Painting |
| Biblical Scene | 1877 | Painting |
| Bijbelse scènes, uitgeveegd | 1870 | Drawing |
| Biljartspelende geraamten | 1903 | Drawing |
| Bloem | Date unknown | Drawing |
| Bloemen en vlinders | 1889 | Painting |
| Blue Flask and Chicken | 1925 | Painting |
| Boats Aground | 1888 | |
| Boer met paardenspan en Marie Colombier | Date unknown | Drawing |
| Bolhoed en schoen | 1880 | Drawing |
| Bomen | Date unknown | Drawing |
| Bootje en figuur | 1880 | Drawing |
| Bosgezicht in Groenendaal | 1888 | |
| Bosgezicht te Groenendaal | 1888 | |
| Bosje | 1888 | |
| Bosrand | 1878 | Drawing |
| Boulevard d'Iseghem, Ostende | 1889 | |
| Boulevard Van Iseghem, Ostend | 1889 | |
| Bouquet d'arbres, MPM.V.V.261.003 | 1888 | |
| Bouquet d'arbres (PK.MP.04890) | 1888 | |
| Bouquet d'arbres, PK.MP.04891 | 1888 | |
| Breakwater | 1887 | |
| Breiende vrouw en hondje | Date unknown | Drawing |
| Bronze pot with Apparitions | 1880 | Drawing |
| Bruggetje (?) | 1889 | Drawing |
| Bust | 1887 | |
| Buste | 1887 | |
| Buste (PK.MP.01223) | 1887 | |
| Cabbages | 1890 | Painting |
| Caesar's Denarius | 1888 | |
| Café-concert à Munich | 1880 | Drawing |
| Calvarie | 1921 | |
| Canal with Barges | 1881 | Painting |
| Candelabra and Vase | 1888 | |
| Candélabre et vase | 1888 | |
| Capture of a Strange Town | 1888 | |
| Carnet met tekeningen | 1880 | Drawing |
| Carnet met tekeningen | Date unknown | Drawing |
| Carnival | 1930 | Painting |
| Carnival in Flanders | 1929 | Painting |
| Carnival in Flanders (Zürich) | 1927 | Painting |
| Carnival on the beach | 1887 | Painting |
| Chaloupes | 1888 | |
| Chaumiéres à Slykens | 1888 | |
| Chère morte | Date unknown | Drawing |
| Child with Doll | 1884 | Painting |
| Children at their Morning Toilet | 1886 | Painting |
| Chimaera | 1888 | |
| Chimère | 1888 | |
| Chinese vaas en figuren | 1880 | Drawing |
| Chinoiserie | 1885 | Drawing |
| Chinoiserie, drie vogels | Date unknown | Drawing |
| Chinoiserie, een demon | 1885–1886 | Drawing |
| Chinoiserie, een krijger | 1885 | Drawing |
| Chinoiserie, een man | 1885 | Painting |
| Chinoiserie, een ooievaar | Date unknown | Drawing |
| Chinoiserie, een oude vrouw | Date unknown | Drawing |
| Chinoiserie, een roofvogel | Date unknown | Drawing |
| Chinoiserie, een vogel | Date unknown | Drawing |
| Chinoiserie, een vrouw | 1885 | Drawing |
| Chinoiserie, een zittende man | 1885 | Drawing |
| Chinoiserie, een zittende man in driekwart rugzicht | 1885 | Drawing |
| Chinoiserie, tafereel | 1884 | Drawing |
| Chinoiserie, twee figuren | 1885 | Drawing |
| Chinoiseries | 1907 | Painting |
| Chinoiseries | 1920 | Painting |
| Chinoiseries with fans | 1880 | Painting |
| Christ agonisant tourmenté par les démons | 1895 | |
| Christ among the Beggards | 1895 | |
| Christ and the Beggars | 1895 | |
| Christ and the Beggars (Le Christ aux mendiants) | 1895 | |
| Christ Calming the Storm | 1886 | |
| Christ Calming The Tempest | 1886 | |
| Christ calming the water | 1891 | Painting |
| Christ calming the water | 1906 | Painting |
| Christ Descending into Hell | 1895 | |
| Christ Descending into Hell | Date unknown | |
| Christ Descending to Hell | 1895 | Drawing |
| Christ in Agony Tormented by Demons | 1895 | |
| Christ in Hell (Le Christ aux enfers) | 1895 | |
| Christ in the Boat | 1898 | |
| Christ insulted | 1886 | |
| Christ mocked | 1880 | Drawing |
| Christ Mocked | 1886 | |
| Christ Orchard | 1886 | |
| Christ's Entry into Brussels in 1889 | 1888 | Painting |
| Christ's Entry into Jerusalem | 1885 | Drawing |
| Christ shown to the People | 1885 | Drawing |
| Christ shown to the People and Christ's Entry into Jerusalem | 1887 | Drawing |
| Christ Tormented by Demons | 1895 | |
| Christ Walking on Water | 1883 | Painting |
| Christ with the Lame | 1880 | Painting |
| Christus bedaart de storm | 1921 | |
| Christus bij de bedelaars | 1895 | |
| Christus daalt neer in de hel | 1895 | |
| Christus door duivels gekweld | 1895 | |
| Christus drijft de duivel uit het het lichaam aan een bezetene | 1921 | |
| Christus en de Engelen | 1921 | |
| Christus en de schriftgeleerden | 1921 | |
| Christus en Romeinse soldaten | 1886 | Drawing |
| Christus in de schuit | 1898 | |
| Christus op de knieën van zijn moeder | 1921 | |
| Christus tussen de moordenaars | 1921 | |
| Christus voor zijn rechters | 1921 | |
| Christus wandelt op de golven | 1921 | |
| Circassische ruiters | Date unknown | Drawing |
| Clams and crustaceans | 1889 | Painting |
| Clownish figures on a beach | Date unknown | Drawing |
| Clump of Trees | 1888 | |
| Colère | 1904 | |
| Combat des pouilleux Désir et Rissolé | 1888 | |
| Combat of the Rascals Désir and Rissolé | 1888 | |
| Combat of The Rascals Désir et Rissolé | 1888 | |
| Comical Repast (Banquet of the Starved) | 1917 | Painting |
| Contes d'Horace van Offel - Le diable au moulin | 1934 | |
| Copy after Honoré Daumier | Date unknown | Drawing |
| Cortège infernal | Date unknown | |
| Cottages | 1888 | |
| Couple in open landau | 1883 | Drawing |
| Cranes et masques | 1888 | |
| Croquis | Date unknown | Drawing |
| Crypte | 1888 | |
| Cymbalists | 1911 | |
| Daffodils, Lilacs and Violets | 1893 | Painting |
| Dahlias | 1932 | Painting |
| Daken | Date unknown | Drawing |
| Dame | Date unknown | Drawing |
| Dame aan cafétafel | 1880 | Drawing |
| Dame en meisje | Date unknown | Drawing |
| Dame en twee heren | Date unknown | Drawing |
| Dance in the Clearing (from the series Les Opalines) | 1913 | |
| Daniel in the Lion's Den | 1880 | Drawing |
| Dansend paar | Date unknown | Drawing |
| Dansers en muzikanten | 1919 | Drawing |
| De aanbidding der herders | 1888 | |
| De afgunst | 1903–1904 | |
| De Amsterdamse lakenhandelaar Nicolaas van Bambeek | 1880 | Drawing |
| De baden van Oostende | 1891 | Drawing |
| De baden van Oostende | 1899 | |
| De bekoring van Christus | 1888 | |
| De bergrede [verso: Studie van drie staande en een zittende figuur] | Date unknown | Drawing |
| De besnijdenis | 1921 | |
| De bespotting van Christus | 1921 | |
| De boeteprocessie van Veurne | 1930 | Drawing |
| De boomgaard | 1886 | |
| De boomgaard | 1900 | |
| De briefschrijfster (Ensors zuster) | 1883 | Drawing |
| De brug van het bos te Oostende | 1889 | |
| De brug van Six | Date unknown | Drawing |
| De bruiloft van Kana | 1913 | Drawing |
| De cataclysmen | 1888 | |
| De componist Hector Berlioz | Date unknown | Drawing |
| De crypte | 1888 | |
| De daken van Oostende | 1900 | |
| De dood achtervolgt de mensenkudde | 1896 | |
| De duivels Dzitts en Hihanox leiden Christus naar de hel | 1895 | |
| De eerste stapjes | 1880 | Drawing |
| De engel des verderfs | 1889 | |
| De engelen vereeren Maria | 1921 | |
| De Franse politicus François Barbé Marbois | Date unknown | Drawing |
| De gefopte boeren | 1893 | Drawing |
| De gendarmes | 1888 | |
| De geseling | 1921 | |
| De gevilde | 1888 | |
| De gierigheid | 1903–1904 | |
| De gierigheid | 1904 | |
| De goede rechters | 1894 | |
| De gramschap | 1903 | |
| De gramschap | 1903–1904 | |
| De grap van de olifant | 1888 | Drawing |
| De gulzigheid | 1903–1904 | |
| De Heilige Geest verlicht de apostelen | 1921 | |
| De herstellende zieke | Date unknown | Drawing |
| De honden | 1894 | Drawing |
| De hoofdzonden gedomineerd door de Dood | 1903–1904 | |
| De hoogmoed | 1903–1904 | |
| De intocht van Christus te Brussel | 1898 | |
| De kathedraal | 1896 | |
| De kleine bron en andere figuren | 1880 | Drawing |
| De kleine schuiten | 1894 | |
| De knaap | 1880 | Drawing |
| De kokette dood (maskers) | 1922 | |
| De kruisafneming | 1921 | |
| De Kruisafneming | Date unknown | Painting |
| De kruisiging | 1921 | |
| De kus van Judas | 1921 | |
| De luiheid | 1902 | |
| De luiheid [De moeder van de kunstenaar] | 1888 | Drawing |
| De minnetuin | 1888 | |
| De molen van Mariakerke | 1889 | |
| De molenduivel | 1934 | |
| De Moord | 1888 | |
| De moord op de onnozele kinderen | 1921 | |
| De ontucht | 1888 | |
| De Oostendse Visser | 1900 | Drawing |
| De oude schelmen | 1895 | |
| De oudjes of de tijd | Date unknown | Drawing |
| De pakjesdragers | 1880 | Drawing |
| De pijproker, profiel en handen | 1880 | Drawing |
| De poel met populieren | 1889 | |
| De processie van Gistel | 1934 | |
| De putruimer | 1896 | |
| De regenten van het Oudemannenhuis in Haarlem. Een figuur | Date unknown | Drawing |
| De regenten van het Oudemannenhuis in Haarlem. Twee figuren | 1880 | Drawing |
| De Rembrandtplaats te Amsterdam | 1890 | Drawing |
| De Romeinse zegetocht | 1890 | |
| De roof der Sabijnse maagden | Date unknown | Drawing |
| De schaduw op het huis | 1933 | |
| De schilder Alfred William Finch - en studie met flessen | 1880 | Drawing |
| De slaapster | 1887 | |
| De Slag der Gulden Sporen | 1895 | |
| De slechte geneesheren | 1895 | |
| De soldenier | Date unknown | Drawing |
| De spelers | 1895 | |
| De terugkeer van de kalvarieberg | 1921 | |
| De tuin van liefde | Date unknown | Painting |
| De Turkse school is uit | Date unknown | Drawing |
| De Van Iseghemlaan in Oostende | 1889 | |
| De Van Iseghemlaan in Oostende, schrijvende man (recto) | 1880 | Drawing |
| De vechtersbazen | 1896 | |
| De vermenigvuldiging van de vissen | 1891 | |
| De verschrikkelijke boogschutter | 1888 | |
| De verzoeking van de Heilige Antonius | 1930 | Drawing |
| De visser | 1880 | Drawing |
| De vissers (De ellendelingen) | 1932 | |
| De waterdrinker | Date unknown | Drawing |
| De wonderbare visvangst | 1921 | |
| De wraak van Hop-Frog | 1898 | |
| De zieke vrouw | Date unknown | Drawing |
| De zielenmissen voor B. de Haze | Date unknown | Drawing |
| De zilverling van Caesar | 1888 | |
| De zilverling van Caesar | 1921 | |
| De zoom van het bosje te Oostende | 1888 | |
| De zuster van Ensor aan het klavier | Date unknown | Drawing |
| Death and the Masks | 1897 | Painting |
| Death Chasing the Flock of Mortals | 1896 | |
| Death Dominating the Deadly Sins (Les Peches capitaux domines par la mort): front. | 1904 | |
| Delicacies | 1938 | Painting |
| Demons Teasing Me | 1895 | |
| Demons Teasing Me: Poster for the James Ensor Exhibition at the Salon des Cent in Paris | 1898 | |
| Demons Torment Me (Les Démons me turlupinant) | 1898 | |
| Der Tod und der Arzt beim Grabstein | 1880 | Drawing |
| Des filles de Sparte luttant | Date unknown | Drawing |
| Detail van afsluiting | 1900 | Drawing |
| Detail van een kapstok | Date unknown | Drawing |
| Deux régentes | 1880 | Drawing |
| Devils Thrashing Angels and Archangels | 1888 | |
| Devils Trashing Angels and Archangels | 1888 | |
| Diable rossant anges et archanges | 1888 | Drawing |
| Diables rossant anges et archanges | 1888 | |
| Diables rossant anges et archanges | 1889 | |
| Die Löwenjagd | 1880 | Drawing |
| Dienstbode (recto) | 1880 | Drawing |
| Dining single man | 1880 | Drawing |
| Diploma voor het X° Landjuweel | 1933 | |
| Dish, bottles and candlestick | Date unknown | Drawing |
| Doctrinaire voeding | 1889 | |
| Doctrinal Nourishment | 1889 | |
| Dode monnik | Date unknown | Drawing |
| Don Quichotte | 1870 | Drawing |
| Don Quichotte | 1884 | Drawing |
| Don Quichotte | Date unknown | Drawing |
| Don Quichotte en 4 gezichten | 1870 | Drawing |
| Don Quichotte en hoofd | Date unknown | Drawing |
| Don Quichotte en paardekop | Date unknown | Drawing |
| Doodshoofden en Willy Finch in de duinen (recto) | 1888 | Drawing |
| Doordruk van 2709/33 | Date unknown | |
| Dorpskerk omringd door bomen | Date unknown | Drawing |
| Double Self Portrait | 1900 | Drawing |
| Draaitrap en figuren | Date unknown | Drawing |
| Dramatische scène | 1883 | Drawing |
| Drie figuren | Date unknown | Drawing |
| Drie heren in gesprek | Date unknown | Drawing |
| Drie hollandse boerinnetjes | Date unknown | Drawing |
| Drie honden | 1880 | Drawing |
| Drie insekten | Date unknown | Drawing |
| Drie klimmende heren en koppen | Date unknown | Drawing |
| Drie koppen van wilde dieren | Date unknown | Drawing |
| Drie varkenskoppen | Date unknown | Drawing |
| Drie zeilboten en een windmolen | 1920 | Drawing |
| Duingras | Date unknown | Drawing |
| Duivels die mij sarren | 1895 | |
| Duivels die mij sarren | 1898 | |
| Duivels rossen engelen en aartsengelen af | 1888 | |
| Dunes | 1877 | Painting |
| Dunes | 1883 | Painting |
| Edelman | Date unknown | Drawing |
| Edge of the Forest in Ostend (La lisiere du petit bois, Ostende) | 1887 | |
| Edge of the Little Wood | 1888 | |
| Edge of the Little Wood Ostend | 1888 | |
| Een ongeval | Date unknown | Drawing |
| Een Zeeuws paardengespan | Date unknown | Drawing |
| Effect of Light | 1935 | Painting |
| Elias Magnus Fries, the Swedish Mycologist | 1886 | |
| Elisabeth Bas | 1880 | Drawing |
| Embleem | Date unknown | Drawing |
| Ensor and Leman discussing painting | 1890 | Painting |
| Ensor at his Easel | 1890 | Painting |
| Ensor at the Harmonium | 1933 | Painting |
| Ensor en Generaal Leman | 1890 | Drawing |
| Ensor en zijn muze | 1937 | Drawing |
| Ensors slapende moeder en figuren | 1880 | Drawing |
| Ensors slapende zuster en figuren | 1880 | Drawing |
| Envie | 1904 | |
| Envy | 1904 | |
| Envy (L'envie) | 1904 | |
| Ernest Rousseau | 1887 | |
| Estacade, PK.MP.04903 | 1887 | |
| Estacade, PK.MP.04904 | 1887 | |
| Execution by Garrote | Date unknown | Drawing |
| Extraordinary Musicians | 1888 | |
| Fall of the Rebel Angels | 1889 | Painting |
| Fans and Fabrics | 1881 | Painting |
| Fantasia | Date unknown | Drawing |
| Fantastische muzikanten | 1888 | |
| Fantastische vogel | Date unknown | Drawing |
| Farm at Leffinghe | 1889 | |
| Feeding of the Five Thousand (La multiplication des poissons) | 1891 | |
| Femme assise vue de dos | Date unknown | Drawing |
| Femme et scène de taverne | Date unknown | Drawing |
| Ferme à Leffinge | 1889 | |
| Figuren | 1870 | Drawing |
| Figuren | 1880 | Drawing |
| Figuren | Date unknown | Drawing |
| Figuren en hoofden | 1870 | Drawing |
| Figuren en ringkan (recto) | 1880 | Drawing |
| Figuren en slijpsteen | Date unknown | Drawing |
| Figuren en tekst | Date unknown | Drawing |
| Figuren uit de liefdestuin | Date unknown | Drawing |
| Figuren (verso) | 1880 | Drawing |
| Figures in Front of a Poster of La Gamme d’amour (after The Entry of Christ into Brussels in 1889) | 1925 | Painting |
| Figuur | Date unknown | Drawing |
| Figuur en fornuis met kookpotten | 1880 | Drawing |
| Figuur op de rug gezien | Date unknown | Drawing |
| Fish and Shells | 1895 | Painting |
| Fisher couple | 1874 | Painting |
| Fisherman falling in the water | 1880 | Drawing |
| Fisherman of Ostend | 1900 | |
| Fisherwoman | 1882 | Painting |
| Fishing-Boats | 1888 | |
| Flaying a Convict | 1888 | |
| Flemish Farm | 1888 | |
| Fles (recto) | 1888 | Drawing |
| Floral Still Life with Skulls | 1908 | Painting |
| Floretten | 1880 | Drawing |
| Flowers | 1892 | Painting |
| Flowers and blue vase | 1909 | Painting |
| Flowers and Chinese Vases | 1896 | Painting |
| Flowers and fruit | 1938 | Painting |
| Flowers and Masks | 1929 | Painting |
| Flowers and Vegetables | 1896 | Painting |
| Flowers in a Vase | Date unknown | Drawing |
| Footpath at Groenendael | 1888 | |
| Forest at Groenendael | 1888 | |
| Fort Napoleon | 1876 | Painting |
| Fort Wellington | 1876 | Painting |
| Fragment van een boom, stilleven op een barokke tafel, kruik en figuren (verso) | 1880 | Drawing |
| Fragment van raam met opgetrokken overgordijn | Date unknown | Drawing |
| Fragment van vaas | Date unknown | Drawing |
| Fridolin and Gragapança of Yperdamme | 1895 | |
| Fridolin and Grapapança of Yperdamme | 1895 | |
| Fridolin en Gragapança van Yperdamme | 1895 | |
| Fridolin et Gragapanca d'Yperdamme | 1895 | |
| Fries met monstertjes | Date unknown | Drawing |
| Frise, The Swedish Botanist | 1886 | |
| Frolics of Tenuous Puppets Transformed into Flowers (from the series Les Opalines) | 1913 | |
| Frontispice | 1921 | |
| Frontispice | Date unknown | |
| Frontispice (uit: Taferelen uit het leven van Christus) | 1921 | |
| Gathering in a Park | 1936 | Painting |
| Gathering in a Park (Assemblee dans un parc) | 1891 | |
| Gebonden album "La Gamme d'Amour | 1912–1929 | |
| Gebonden album "Taferelen uit het leven van Christus | 1921 | |
| Geërgerde maskers | 1895 | |
| Gefolterde (?) | Date unknown | Drawing |
| Gehurkte man met petroleumbus | Date unknown | Drawing |
| Geïntrigeerde maskers | 1904 | |
| Genretafereel | Date unknown | Drawing |
| Genretafereel en ornament | Date unknown | Drawing |
| Geraamte dat zich wil verwarmen | Date unknown | Drawing |
| Geraamten die zich willen warmen | 1895 | |
| Gestrande schuiten | 1888 | |
| Gevallen Arabische ruiter met steigerend paard | Date unknown | Drawing |
| Gevel | Date unknown | Drawing |
| Gezicht op de haven van Oostende | 1888 | |
| Gezicht op Mariakerke | 1900 | Drawing |
| Gezicht op Oostende in het oosten | 1888 | |
| Girl | 1880 | Drawing |
| Girl with Masks (Communion) | 1921 | Painting |
| Girl with upturned Nose | 1879 | Painting |
| Gluttony | 1904 | |
| Gluttony (La gourmandise) | 1904 | |
| Gordijnroede | Date unknown | Drawing |
| Gourmandise | 1904 | |
| Grand View of Mariakerke | 1887 | |
| Grande vue de Mariakerke | 1887 | |
| Grey Seascape | 1880 | Painting |
| Groep gemaskerde muzikanten | Date unknown | Drawing |
| Groep hoge bomen | 1890 | Drawing |
| Groep ruiters | Date unknown | Drawing |
| Groep soldaten en burgers | Date unknown | Drawing |
| Groteske figuren | 1912 | Drawing |
| Groteske figuur | Date unknown | Drawing |
| Group of Trees | 1888 | |
| Hamlet | Date unknown | Drawing |
| Hand en degen | Date unknown | Drawing |
| Hand met geweerloop | Date unknown | Drawing |
| Handen | Date unknown | Drawing |
| Handen en ornament | Date unknown | Drawing |
| Handen en silhouetten | Date unknown | Drawing |
| Hangklok en hoeden | 1880 | Drawing |
| Havengezicht | Date unknown | Drawing |
| Heer en dame aan tafel | 1912 | Drawing |
| Heer en kelner | Date unknown | Drawing |
| Heer en twee gehurkte figuurtjes | Date unknown | Drawing |
| Heer met hoge hoed | Date unknown | Drawing |
| Heilige Familie | 1921 | |
| Hemelvaart | 1921 | |
| Hengst | Date unknown | Drawing |
| Herbergscène met dansend boerenpaar (verso) | 1880 | Drawing |
| Het afscheid van Napoleon | 1896 | |
| Het balkon | Date unknown | Drawing |
| Het betoverd meubel | 1888 | |
| Het doopsel van Christus | 1921 | |
| Het fantastische bal | 1889 | |
| Het gesprek | Date unknown | Drawing |
| Het gevecht | 1896 | |
| Het grote dok in Oostende | 1888 | |
| Het laatste avondmaal | 1921 | |
| Het model | Date unknown | Drawing |
| Het onweer | 1889 | |
| Het spook | 1889 | |
| Het strand van De Panne | 1904 | |
| Hippogriff, Evil Spirits, Interior Elements | 1880 | Drawing |
| Hoed en silhouet | 1918 | Drawing |
| Hoek in het atelier met kachelvoet, kist en figuren | 1880 | Drawing |
| Hoeve | 1920 | Drawing |
| Hoeve te Leffinge | 1889 | |
| Hoevedaken | Date unknown | Drawing |
| Hollandse kast | Date unknown | Drawing |
| Hond | 1880 | Drawing |
| Hoofd van een fluitspelende vrouw | Date unknown | Drawing |
| Hoofddekseltjes en boerinnetjes | Date unknown | Drawing |
| Hoofden | 1870 | Drawing |
| Hoofden | 1882 | Drawing |
| Hoofden | 1900 | Drawing |
| Hoofden | Date unknown | Drawing |
| Hoofden en stilleven | Date unknown | Drawing |
| Hooiopper met windmolen, boot en kleine hoeve | 1888 | Drawing |
| Hooiopper, roeiers in kano, windmolen | Date unknown | Drawing |
| Hop-Frog | 1898 | |
| Hop-Frog's Revenge | 1885 | |
| Hop-Frog's Revenge | 1895 | |
| Hop-Frog's Revenge | 1898 | |
| Hop-Frog's Revenge | 1922 | |
| Horses and silhouettes | 1880 | Drawing |
| House on the Boulevard Anspach | 1888 | |
| Houses, a street lamp and a carriage | 1885 | Drawing |
| Houses on the Boulevard Anspach in Brussels(Maisons du boulevard Anspach a Bruxelles) | 1888 | |
| Huis met bomen | Date unknown | Drawing |
| Huis met torenerker | 1890 | Drawing |
| Huis, narren, portret | Date unknown | Drawing |
| Huis op de Anspachlaan | 1888 | |
| Huisjes in Mariakerke | 1888 | |
| Huizen en peervormig torentje | Date unknown | Drawing |
| Hutten | 1888 | |
| I. L'Annonciation | Date unknown | |
| I. Maria-boodschap (uit: Taferelen uit het leven van Christus) | 1921 | |
| Icône - Portrait of Eugène Demolder | 1893 | Painting |
| II. De aanbidding der wijzen (uit: Taferelen uit het leven van Christus) | 1921 | |
| II. L'Adoration des Mages | Date unknown | |
| III. De moord op de onnozele kinderen (uit: Taferelen uit het leven van Christus) | 1921 | |
| III. Le Massacre des Innocents | Date unknown | |
| In de loge | Date unknown | Drawing |
| In the Dunes | 1883 | Painting |
| Inneming van een vreemde stad | 1888 | |
| Insectes singuliers | 1888 | |
| Insectes singuliers | Date unknown | |
| insects | Date unknown | Drawing |
| Interieur met open haard | Date unknown | Drawing |
| Intrede in Jeruzalem | 1921 | |
| Iston, Pouffamatus, Cracozie and Transmouffe, famous Persian physicians, examining the Stool of Darius | 1886 | |
| Iston, Pouffamatus, Cracozie and Transmouffe, famous Persian physicians, examining the Stool of Darius after the battle of Arbela | 1886 | |
| Iston, Pouffamatus, Cracozie and Transmouffe, Famous Persian Physicians, Examining the Stools of King Darius after the Battle of Arbela | 1886 | |
| Iston Pouffamatus Cracozie Transmouff célèbres medecins persans examinant les selles du Roi Darius après la bataille d'Arbelles | 1886 | |
| Iston, Pouffamatus... examining the Stool fo Darius | 1886 | |
| IV. De vlucht naar Egypte (uit: Taferelen uit het leven van Christus) | 1921 | |
| IV. La Fuite en Egypte | Date unknown | |
| IX. De zilverling van Caesar (uit: Taferelen uit het leven van Christus) | 1921 | |
| IX. Le denier de César | Date unknown | |
| Jardin d'amour | 1888 | |
| Jardin d'amour | 1925 | Painting |
| Jardin d'amour (PK.MP.01200) | 1888 | |
| Joan of Arc | 1880 | Drawing |
| Jonge Picardiërs bij een oefening met lansen | Date unknown | Drawing |
| Jonge vrouw | Date unknown | Drawing |
| Jongen met zwaard | Date unknown | Drawing |
| Judit en Holofernes | 1879 | Painting |
| Kaasklok en lissen | Date unknown | Drawing |
| Kachel en figuren (recto) | 1880 | Drawing |
| Karnavalfiguurtjes | Date unknown | Drawing |
| Kerkje van Tholen | Date unknown | Drawing |
| Kind op rug gezien | 1880 | Drawing |
| King Pest | 1880 | Drawing |
| King Pest | 1895 | |
| Klassiek academiemodel | 1878 | Drawing |
| Klein gezicht op Mariakerke | 1887 | |
| Klein gezicht op Mariakerke | 1900 | |
| Klein meisje en ornament | Date unknown | Drawing |
| Kleine vreemdsoortige figuren | 1888 | |
| Koets | 1890 | Drawing |
| Koets en twee heren | 1880 | Drawing |
| Koffertje en zwaard | Date unknown | Drawing |
| Koffiekan | Date unknown | Drawing |
| Koning Pest | 1895 | |
| Koningin Parysatis | 1890 | |
| Kop en drie honden | Date unknown | Drawing |
| Kop in vooraanzicht en in profiel | Date unknown | Drawing |
| Kop, schoteltje en figuren (recto) | 1880 | Drawing |
| Köpfe | 1880 | Drawing |
| Kopie | Date unknown | Drawing |
| Kopie naar Goya | Date unknown | Drawing |
| Kopie naar Grévin | Date unknown | Drawing |
| Kopie naar Salvator Rosa | Date unknown | Drawing |
| Kopje en afdruk | Date unknown | Drawing |
| Krabbel | Date unknown | Drawing |
| Krabbel: militairen | Date unknown | Drawing |
| Krabbel van marine | Date unknown | Drawing |
| Krabbel van ornament? | Date unknown | Drawing |
| Krabbels met houtskool | Date unknown | Drawing |
| Kroegtafereel | Date unknown | Drawing |
| Kroonkandelaar en vaas | 1888 | |
| Kruiwagen en figuren (recto) | 1880 | Drawing |
| Kruiwagen, figuren en schets | 1880 | Drawing |
| L'Acacia | 1888 | |
| L'Amour Moissonneur | Date unknown | Drawing |
| L'ange exterminateur | 1889 | |
| L'archer terrible | 1888 | |
| L'assassinat | 1888 | |
| L'écorché | 1888 | |
| L'entrée du Christ à Bruxelles en 1889 | 1889 | |
| L'Entrée du Christ à Bruxelles en 1889 | 1898 | |
| L'Hôtel de ville de Bruxelles | 1885 | Painting |
| L'orage | 1889 | |
| La Blague de l'éléphant | 1888 | |
| La Cathédrale | 1860 | |
| La Cathédrale | 1886 | |
| La dormeuse (rare) | 1887 | |
| La gamme d'amour | 1926 | Painting |
| La Lisiere du bois d'Ostende | 1888 | |
| La Madeleine | 1887 | |
| La mort poursuivant le troupeau des humains | 1896 | |
| La multiplication des poissons | 1891 | |
| La musique Rue de Flandre à Ostende | 1890 | |
| La prise d'une ville étrange | 1888 | |
| La reine Parysatis écorchant un eunuque | 1900 | |
| La Syrene | Date unknown | Drawing |
| La Tentation du Christ | 1888 | |
| La vengeance de Hop-Frog | 1898 | |
| Laat de kleinen tot mij komen | 1921 | |
| Lady Godiva | 1933 | |
| Lady Singing | 1880 | Drawing |
| Landelijke brug | 1889 | |
| Landscape with waterfalls | 1875 | Painting |
| Landschap met kerktoren en windmolen | Date unknown | Drawing |
| Landschap met kruis | Date unknown | Drawing |
| Landschap met molen en laag wolkendek | 1890 | Drawing |
| Landschapsfragment met waterrad en twee figuren (verso) | 1880 | Drawing |
| Lantaarn en kruiwagen | 1870 | Drawing |
| Large Basin of Ostend Harbor (Le Grand Bassin, Ostende) | 1888 | |
| Large seascape - Sunset | 1885 | Painting |
| Large View of Mariakerke | 1887 | |
| Large View of Mariakerke (Grande vue de Mariakerke) | 1887 | |
| Laute spielender Engel | Date unknown | Drawing |
| Le Bal fantastique | 1889 | |
| Le Ballet Féerique (Le Jardin D'Amour) | 1925 | Painting |
| Le bassin d' Ostende | 1888 | |
| Le Botaniste Scandinave Frise | 1886 | |
| Le Boulevard van Iseghem, Ostende | 1889 | |
| Le Cathédrale | 1886 | |
| Le Christ apaisant la tempète | 1886 | |
| Le Christ aux Mendiants | 1895 | |
| Le Christ dans la barque | 1898 | |
| Le Christ descendant aux enfers | 1895 | |
| Le Christ montré au peuple | 1886 | |
| Le Christ tourmenté (Christ Tormented) | 1888 | Painting |
| Le cortège infernal | Date unknown | Drawing |
| Le coup de vent à la lisière | 1888 | |
| Le Denier de César | 1888 | |
| Le Fantôme | 1889 | |
| Le feu d'artifice (Fireworks) | 1887 | Painting |
| Le grand bassin d' Ostende | 1888 | |
| Le Meuble hanté | 1888 | |
| Le moulin de Slykens (PK.MP.01186) | 1891 | |
| Le moulin de Slykens (PK.MP.01187) | 1891 | |
| Le Pisseur | 1887 | |
| Le Pont du Bois à Ostende | 1889 | |
| Le Réverbère | 1888 | |
| Le Roi Albert et son temps | 1932 | |
| Le Roi peste | 1895 | |
| Le verger | 1886 | |
| Leeuw en schildpad | 1880 | Drawing |
| Leeuw met haas | 1880 | Drawing |
| Leeuwin die prooi verscheurt | Date unknown | Drawing |
| Les adieux de Napoleon | 1897 | |
| Les Bains à Ostende | 1899 | |
| Les barques | Date unknown | Drawing |
| Les bons juges | 1894 | |
| Les cataclysmes, Vision devançant le futurisme | 1888 | |
| Les Cuisiniers dangereux | 1896 | Drawing |
| Les Demons me turlupinant | 1895 | |
| Les Diables Dzitts et Hihahox menant le Christ aux enfers | 1895 | |
| Les étoiles au cimetière | 1888 | |
| Les gendarmes | 1888 | |
| Les Insèctes Singuliers | 1888 | |
| Les masques | 1922 | |
| Les Masques et la Mort | 1898 | Painting |
| Les Mauvais médécins | 1895 | |
| Les patineurs | 1889 | |
| Les petites barques | 1894 | |
| Les peupliers | 1889 | |
| Les toits à Ostende | 1903 | |
| Les Vieux Polissons | 1895 | |
| Lezende man | 1880 | Drawing |
| Lezende man en hoofden | Date unknown | Drawing |
| Liggende leeuw | 1880 | Drawing |
| Liggende vrouw | 1908 | Drawing |
| Light stripped of leaves | 1936 | Painting |
| Lion | Date unknown | Drawing |
| Little Houses at Mariakerke | 1888 | |
| Little View of Mariakerke | 1887 | |
| Little View of Mariakerke | 1900 | |
| Lust | 1888 | |
| Lust (La luxure) | 1888 | |
| Luxure | 1888 | |
| Ma tante chérie | Date unknown | Painting |
| Madam Gratiot | 1880 | Drawing |
| Man, drinkglas en figuurtjes | 1881 | Drawing |
| Man en boot, stoel | Date unknown | Drawing |
| Man en plant | Date unknown | Drawing |
| Man en twee gehurkte figuurtjes | Date unknown | Drawing |
| Man in profiel | 1917 | Drawing |
| Man met baard | Date unknown | Drawing |
| Man met hoed | 1880 | Drawing |
| Man met pet | Date unknown | Drawing |
| Man met verfpot | 1880 | Drawing |
| Man of Sorrows | 1891 | Painting |
| Man steunend op een stok | Date unknown | Drawing |
| Mand met vruchten | 1935 | Drawing |
| Mannelijke naakten | Date unknown | Drawing |
| Manshoofd in profiel | Date unknown | Drawing |
| Marche des Rotariens Ostendais | 1923 | |
| Maria Boodschap | 1921 | |
| Marine met duin en zeilboten | 1917 | Drawing |
| marine / zeegezicht | 1910 | Painting |
| Marionet en schouwstijl | Date unknown | Drawing |
| Mars van de Oostendse Rotariërs | 1922–1923 | |
| Mars van de Oostendse Rotariërs | 1923 | |
| Mask and Crustaceans | 1891 | Painting |
| Masked woman | Date unknown | Drawing |
| Masks | 1925 | Painting |
| Masks | Date unknown | Drawing |
| Masks Confronting Death | 1888 | Painting |
| Masques Scandalisés | 1895 | |
| Materiaalstudie | Date unknown | Drawing |
| Mazurka Caprice de James Ensor | Date unknown | Artwork |
| Meadow Flowers | 1883 | Painting |
| Meeting in a Park | 1891 | |
| Meisje | 1885 | Drawing |
| Meisje met wipneus (?) en Arondskelken | 1880 | Drawing |
| Meisje met witte voorschoot | 1880 | Drawing |
| Mejuffrouw Zucchi van de 'Eden' | Date unknown | Drawing |
| Mensenmenigte | Date unknown | Drawing |
| Menu Charles Vos | 1896 | |
| Menu for Charles Vos | 1896 | |
| Menu for Ernest Rousseau | 1896 | |
| Menu pour Charles Vos | 1896 | |
| Menu pour Ernest Rousseau, PK.MP.04906 | 1896 | |
| Menu pour Ernest Rousseau, PK.MP.04907 | 1896 | |
| Mery Laurent met mopshond | Date unknown | Drawing |
| Mijn dode moeder | 1915 | Drawing |
| Mijn dode moeder II | 1915 | Drawing |
| Mijn dode moeder III | 1915 | Drawing |
| Mijn dode moeder IV | 1915 | Drawing |
| Mijn dode tante | 1916 | Drawing |
| Mijn dode vader | 1888 | |
| Mijn handen | 1928 | Drawing |
| Mijn moeder bij naaiwerk (verso) | Date unknown | Drawing |
| Mijn portret | 1905 | Drawing |
| Mijn portret in 1960 | 1888 | |
| Mijn portret met doodshoofd | 1889 | |
| Mijn tante | Date unknown | Drawing |
| Mijn zuster en schets van een schilderij | 1880 | Drawing |
| Militair te paard, en stoel | Date unknown | Drawing |
| Militairen | 1880 | Drawing |
| Militairen | Date unknown | Drawing |
| Militairen en silhouetten | Date unknown | Drawing |
| Minnetuin | 1888 | |
| Mitche | 1880 | Drawing |
| Mitche | Date unknown | Drawing |
| Mitche Ensor | 1885 | Drawing |
| Model of a ship | 1885 | Drawing |
| Moeder van Ensor | 1870 | Drawing |
| Moeder van Ensor | 1880 | Drawing |
| Moeder van Ensor | Date unknown | Drawing |
| Moeder van Ensor en silhouetten | 1880 | Drawing |
| Moeder van Ensor - voet en handen | 1880 | Drawing |
| Molen te Slykens | 1891 | |
| Mon père mort | 1888 | |
| Mon père mort, PK.MP.04915 | 1888 | |
| Mon père mort, PK.MP.04916 | 1888 | |
| Mon Portrait en 1960 | 1888 | |
| Monkey | Date unknown | Drawing |
| Monniken bij het balspel | Date unknown | Drawing |
| Monotype | Date unknown | Drawing |
| Monsters and Caricatures | 1888 | Drawing |
| Mordecai's Triumph | 1880 | Drawing |
| Moses and the Birds | 1924 | Painting |
| Mother of Rembrandt and other Figures | 1880 | Drawing |
| moulin: Slykens | 1891 | |
| Mountain Landscape | 1890 | Drawing |
| Mountain Landscape | Date unknown | Drawing |
| Music in the Vlaanderenstraat | 1891 | Painting |
| Music-making group | 1877 | Drawing |
| Music on the Rue de Flandres | 1890 | |
| Musiciens fantasques | 1888 | |
| Muziek in de Vlaanderenstraat in Oostende | 1890 | |
| My Dead Father | 1888 | |
| My Favorite Room | 1892 | Painting |
| My Portrait as a Skeleton | 1889 | |
| My Portrait in 1960 | 1888 | |
| My Skeletized Portrait | 1889 | |
| My Sleeping Aunt Dreaming of Monsters | 1888 | Drawing |
| Mythologische scène | 1877 | Drawing |
| Naaiende handen | Date unknown | Drawing |
| Naaiwerk (De handen) | Date unknown | Drawing |
| Naakten en harlekijnen | Date unknown | Drawing |
| Naked boy | 1878 | Painting |
| Napoleon's Farewell | 1897 | |
| Narren | Date unknown | Drawing |
| Nature morte au canard | 1910 | Painting |
| Neptunus | Date unknown | Drawing |
| Neushoorn | Date unknown | Drawing |
| Nimfen | 1923 | Drawing |
| Odalisk | Date unknown | Drawing |
| Old Lady with Masks | 1889 | Painting |
| Old man | 1878 | Painting |
| Old Man with Flowing Beard | 1880 | Drawing |
| Oostende, gezicht vanuit het station | Date unknown | Drawing |
| Oostendse verhalen door Theo Hannon | Date unknown | Drawing |
| Oostendse visser | 1900 | |
| Oosters paar | Date unknown | Drawing |
| Op de koerstribune | 1880 | Drawing |
| Open haard | Date unknown | Drawing |
| Openstaand raam met loodglas | Date unknown | Drawing |
| Operascène | Date unknown | Drawing |
| Opgebonden overgordijn | Date unknown | Drawing |
| Ophelia | Date unknown | Drawing |
| Orchard (Le Verger) | 1886 | |
| Orgueil | 1904 | |
| Ornament - Head of a monster | Date unknown | Drawing |
| Ornament - kop | Date unknown | Drawing |
| Ornament - Leeuwenkop | Date unknown | Drawing |
| Ornament - Lion's head | Date unknown | Drawing |
| Ostend Harbour | 1900 | Painting |
| Oude vrouw en kind | Date unknown | Drawing |
| Paar | Date unknown | Drawing |
| Paar in interieur | Date unknown | Drawing |
| Paar voor rustbed | 1880 | Drawing |
| Paard en silhouetten | Date unknown | Drawing |
| Paarden en hoek van zitbank | Date unknown | Drawing |
| Paarden en tekst | Date unknown | Drawing |
| Paarden en vrouw | Date unknown | Drawing |
| Paarden en zittende man | Date unknown | Drawing |
| Paarden, kar en werkman | 1880 | Drawing |
| Paresse | 1902 | |
| Pear, grapes and nuts | 1889 | Painting |
| Péchés capitaux dominés par la mort | 1904 | |
| Pécheur d'Ostende, PK.MP.04918 | 1900 | |
| Pécheur d'Ostende, PK.MP.04919 | 1900 | |
| Pécheur d'Ostende, PK.MP.04920 | 1900 | |
| Peculiar Insects | 1888 | |
| Pen and inkpot on a glass dish | 1885 | Drawing |
| Peonies and Poppies | 1883 | Painting |
| Perplexed Masks | 1904 | |
| Peste dessous, peste dessus, peste partout! | 1904 | |
| Petite vue de Mariakerke | 1887 | |
| Petite vue de Mariakerke | 1900 | |
| Petite vue de Mariakerke (PK.MP.04893) | 1887 | |
| Pierrot and Skeleton in a Yellow Robe | 1893 | Painting |
| Pierrot and skeletons | 1906 | Painting |
| Pierrot's despair | 1910 | Painting |
| Pigs | 1875 | Painting |
| Pink Dancer (from the series Les Opalines) | 1913 | |
| Plage de La Panne | 1904 | |
| Plage de La Panne (PK.MP.04897) | 1904 | |
| Plague here, Plague there, Plague everywhere | 1888 | Drawing |
| Poezen en raam | 1870 | Drawing |
| Pollution Under, Pollution over, Pollution All Around | 1904 | |
| Popje | 1886 | Drawing |
| Porcelaines et Masques | 1929 | Painting |
| Portrait d'Ernest Rousseau | 1887 | |
| Portrait D'Hector Denis | 1890 | |
| Portrait de Augusta Bogaerts (La Sirene) | Date unknown | Painting |
| Portrait du professeur Ernest Rousseau | 1887 | |
| Portrait of a Boy | 1906 | Painting |
| Portrait of a Man | 1880 | Drawing |
| Portrait of a Man | Date unknown | Drawing |
| Portrait of Emile Verhaeren | 1890 | Painting |
| Portrait of Hector Denis | 1890 | |
| Portrait of René Coens | 1937 | Drawing |
| Portrait of the Artist Henry de Groux | 1883 | Drawing |
| Portrait of the Artist's Father | 1881 | Painting |
| Portrait of the Artist's Mother | 1882 | Painting |
| Portrait of the Artist Willy Finch | 1883 | Drawing |
| Portrait of the Artist’s Mother | 1885 | Painting |
| Portrait of Willy Finch | 1882 | Painting |
| Portret van Alexandra Daveluy | 1927 | Painting |
| Portret van Dario de Regoyos schrijvende | 1880 | Drawing |
| Portret van een vrouw | Date unknown | Drawing |
| Portret van Ernest Rousseau | 1887 | Drawing |
| Portret van Hector Denis | 1890 | |
| Portret van mijn moeder en figuren | 1880 | Drawing |
| Portret van Willy Finch | 1888 | Drawing |
| Portret van Willy Finch op de rug | 1880 | Drawing |
| Poster of La Plume | 1922 | |
| Poster of the Carnival at Ostend | 1931 | |
| Pouilleux indisposé se chauffant | 1895 | |
| Pride | 1904 | |
| Pride (L'orgueil) | 1904 | |
| Programma van de opvoering van het ballet "La Gamme d'Amour" - Schouwburg Oostende 17 december 1932 | 1932 | |
| Pronkkast en figuren | 1880 | Drawing |
| Publicitaire sluitzegel voor het carnaval van Oostende | 1931 | |
| Puzzled Masks | 1904 | |
| Queen Parysatis | 1899 | |
| Regentessen van het Oudemannenhuis in Haarlem. Een figuur | 1880 | Drawing |
| Regentessen van het Oudemannenhuis in Haarlem. Handen | 1880 | Drawing |
| Regentessen van het Oudemannenhuis in Haarlem. Mouw van een regentes | 1880 | Drawing |
| Regentessen van het Oudemannenhuis in Haarlem. Twee paar handen | 1880 | Drawing |
| Rembrandt's Self Portrait | 1880 | Drawing |
| Rendez notre ancienne face fors les chers faux nez burlesques | 1923 | Drawing |
| René Lyr | Date unknown | Drawing |
| Reptiel en dierenkopje | Date unknown | Drawing |
| Return from Calvary | 1877 | Painting |
| Return of the prodigal son | 1877 | Painting |
| Reverences of Puppets before Cydalise (from the series Les Opalines) | 1913 | |
| Rocaillemotief (verso) | 1888 | Drawing |
| Roi Peste | 1895 | |
| Roman Triumph | 1889 | |
| Roman Victory | 1889 | |
| Roofs at Ostend | 1903 | |
| Rooftops of Ostend | 1885 | Painting |
| Rue du Bon Secours, Brussels | 1887 | |
| Rue du Bon Secrous, Brussels | 1887 | |
| Ruiter | 1870 | Drawing |
| Ruiter van de lichte artillerie | Date unknown | Drawing |
| Russian Music | 1881 | Painting |
| Rustend paar | Date unknown | Drawing |
| Rustend vrouwelijk naakt | Date unknown | Drawing |
| Rustende vrouw | Date unknown | Drawing |
| Rustic Bridge | 1889 | |
| Salisbury Cathedral from the Meadows | 1880 | Drawing |
| Satan and the Fantastic Legions Tormenting the Crucified (The Sad and Broken) (recto) | 1886 | Drawing |
| Sater | Date unknown | Drawing |
| Satire of Laurent Tailhade | Date unknown | Drawing |
| Scandalized Masks | 1895 | |
| Schedels en maskers | 1888 | |
| Schets naar oude meester en figuren (recto) | 1880 | Drawing |
| Schetsblad met Christusbeeld | Date unknown | Drawing |
| Schetsblad met ruiters | Date unknown | Drawing |
| Schetsblad met staande man | Date unknown | Drawing |
| Schetsbladen op een blad | Date unknown | Drawing |
| Schetsboek | Date unknown | Drawing |
| Schetsen | 1880 | Drawing |
| Schetsen van figuren en paarden (recto) | 1880 | Drawing |
| Schetsen van handen | Date unknown | Drawing |
| Schildpad | Date unknown | Drawing |
| Schouw en handen | 1887 | Drawing |
| Schrijvende man | 1880 | Drawing |
| Schrijvende of lezende man | Date unknown | Drawing |
| Schrijvende vrouw op rug gezien | 1882 | Drawing |
| Seascape | 1880 | Painting |
| Seashells | 1896 | Painting |
| Seashells | 1936 | Painting |
| Seashells and Chinoiseries | 1882 | Painting |
| Seaside | 1923 | Painting |
| Seated Boy | 1880 | Drawing |
| Seated Man | Date unknown | Drawing |
| Seated Woman | Date unknown | Drawing |
| Selbstporträt umringt von Köpfen | 1900 | Drawing |
| Self Portrait | 1870 | Drawing |
| Self Portrait | 1880 | Drawing |
| Self-Portrait | 1885 | Drawing |
| Self-Portrait | 1886 | |
| Self Portrait | Date unknown | Drawing |
| Self-portrait with flowered hat | c. 1885–1888 (inscribed 1883) | Painting |
| Self-Portrait (with lamp) | 1886 | |
| Self-Portrait with Lamp (In the Dark) | 1886 | Drawing |
| Self-portrait with masks | 1899 | Painting |
| Self-Portrait with Masks | 1937 | Painting |
| Series of Masks | Date unknown | Drawing |
| Sick Wretch Warming Himself | 1895 | |
| Sierpot en paard | 1880 | Drawing |
| Silhouette of a Woman, Mitche and a Lock | 1885 | Drawing |
| Silhouetten | 1880 | Drawing |
| Silhouetten | 1917 | Drawing |
| Silhouetten | 1918 | Drawing |
| Silhouetten | Date unknown | Drawing |
| Silhouetten en 2 figuren op de rug gezien | Date unknown | Drawing |
| Silhouetten en hoofden | 1880 | Drawing |
| Silhouetten en kar | Date unknown | Drawing |
| Silhouettes | 1880 | Drawing |
| Silhouettes and grotesque figures | 1880 | Drawing |
| Silhouettes Studies of walking figures | Date unknown | Drawing |
| Skelet bekijkt chinoiserieën | 1910 | Painting |
| Skeleton Looking at Chinoiseries | 1885 | Painting |
| Skeleton Painter in his Studio | 1896 | Painting |
| Skeletons fighting over a Hanged Man | 1891 | Painting |
| Skeletons Fighting over a Pickled Herring | 1891 | Painting |
| Skeletons in Fancy Dress | 1898 | Painting |
| Skeletons in the Studio | 1900 | Painting |
| Skeletons seeking warmth | Date unknown | |
| Skeletons Trying to Warm Themselves (Taevernier: Warmth Seeking Skeletons) | 1895 | |
| Skeletons Warming Themselves | 1889 | Painting |
| Skulls and Masks | 1888 | |
| Slapend meisje | Date unknown | Drawing |
| Slapende en wakende vrouw | 1880 | Drawing |
| Slapende honden | 1880 | Drawing |
| Slapende moeder van Ensor | 1915 | Drawing |
| Slapende oude vrouw | 1880 | Drawing |
| Slapende oude vrouw | 1895 | Drawing |
| Slapende oude vrouw | 1897 | Drawing |
| Slapende oude vrouw | Date unknown | Drawing |
| Slapende vrouw | Date unknown | Drawing |
| Sloepen | 1888 | |
| Sloops | 1890 | Painting |
| Sloth | 1902 | |
| Sloth | 1904 | |
| Sloth (La paresse) | 1902 | |
| Small Bizarre Figures | 1888 | |
| Small House at Mariakerke | 1888 | |
| Small View of Mariakerke | 1900 | |
| Smid en kandelaar | Date unknown | Drawing |
| Smidse met twee figuren (recto) | 1880 | Drawing |
| Smile of Carnations, Caress of Daisies | 1936 | Painting |
| Snuisterijen en figuren | 1883 | Drawing |
| Soldaat en monnik | Date unknown | Drawing |
| Soldatentrupp | Date unknown | Drawing |
| Soldier and horse | Date unknown | Drawing |
| Sorciers dans la bourrasque | 1888 | |
| Sous-bois à Groenendael | 1888 | |
| Spijskaart voor Charles Vos | 1896 | |
| Spitting man | Date unknown | Drawing |
| Spookgestalte | Date unknown | Drawing |
| Squall at the Edge of the Wood | 1888 | |
| Square Rembrandt, Amsterdam graphic | Date unknown | |
| Squelettes voulant se chauffer | 1895 | |
| Squelettes voulant se chauffer | Date unknown | Drawing |
| Staande en zittende zigeunersvrouw | Date unknown | Drawing |
| Staande figuur op de rug gezien | Date unknown | Drawing |
| Stadhuis van Oudenaarde | 1888 | |
| Stand of Trees (Bouquet d'arbres) | 1888 | |
| Stapel boeken | 1880 | Drawing |
| Steam-Boats | 1888–1889 | |
| Steamboats | 1889 | |
| Steamships | 1889 | |
| Steekspel | Date unknown | Drawing |
| Sterrenhemel boven het kerkhof | 1888 | |
| Still-life (Fabrics) | 1880 | Painting |
| Still Life in the Studio | 1889 | Painting |
| Still life with a cabbage | 1921 | Painting |
| Still Life with Blue Jar | 1890 | Painting |
| Still Life with Blue Pitcher | 1891 | Painting |
| Still Life with chinoiseries | 1880 | Painting |
| Still Life with Chinoiseries | 1906 | Painting |
| Still-life with duck | 1880 | Painting |
| Still Life with Fish and Shells | 1898 | Painting |
| Still Life with Geranium | 1882 | Painting |
| Still-life with Masks | 1896 | Painting |
| Still Life with Oysters | 1882 | Painting |
| Still Life with Sea Shells | 1923 | Painting |
| Still Life with Tulips and Roses | 1882 | Painting |
| Stilleven met blauwe chinoiserieën | Date unknown | Painting |
| Stilleven met flessen | Date unknown | Drawing |
| Stilleven met groenten | 1882 | Painting |
| Stilleven met kaars | Date unknown | Drawing |
| Stilleven met sater | Date unknown | Drawing |
| Stilleven met visserslamp | Date unknown | Drawing |
| Stilleven, spiegel, zittende figuur | Date unknown | Drawing |
| Stillleben mit blauer Flasche und gerupftem Huhn - 4420 - Österreichische Galerie Belvedere | 1910 | Painting |
| Storm at the Edge of the Wood | 1888 | |
| Straat in Oostende (?) | 1895 | Drawing |
| Straat naast het kanaal | Date unknown | Drawing |
| Straatlantaarn | 1888 | |
| Strand- en zeegenoegens | 1890 | Drawing |
| Strand von Ostende - 2122 - Kunsthaus Zürich | 1915 | Painting |
| Strandtent en silhouetten | Date unknown | Drawing |
| Streaming water | 1913 | Drawing |
| Studie | Date unknown | Drawing |
| Studie met flessen en koppen | Date unknown | Drawing |
| Studie van badende vrouwen | Date unknown | Drawing |
| Studie van dame met parasol | Date unknown | Drawing |
| Studie van drie staande en een zittende figuur [recto: De bergrede] | Date unknown | Drawing |
| Studie van een badende vrouw | Date unknown | Drawing |
| Studie van een wild dier | Date unknown | Drawing |
| Studie van handen en hoofden | 1880 | Drawing |
| Studie van houdingen | Date unknown | Drawing |
| Studie van kerstgroepen | Date unknown | Drawing |
| Studie van kopprofielen en van handen | 1880 | Drawing |
| Studieblad van de leeuwenjacht | Date unknown | Drawing |
| Studies for a Portrait of a Woman | 1885 | Drawing |
| Studies van voorovergebogen hoofd | 1880 | Drawing |
| Sunrise | 1880 | Drawing |
| Tafel, kruiken, roemer, figuren (verso) | 1888 | Drawing |
| Tafel met leeuwenkoppen | Date unknown | Drawing |
| Taferelen uit het leven van Christus | 1921 | |
| Taskin als wonderdokter in Hoffmann's vertellingen | Date unknown | Drawing |
| Tekeningen uit de collectie van het KMSKA | Date unknown | Drawing |
| Tekst | Date unknown | Drawing |
| Tekst en hoofd van een vrouw met bril en figuren (verso) | 1880 | Drawing |
| Tenhemelopneming van Maria | 1921 | |
| Terugkeer van de berenjacht in het steentijdperk | Date unknown | Drawing |
| The absinthe drinker | 1880 | Drawing |
| The Acacia (L'acacia) | 1888 | |
| The Adoration of the Shepherds | 1887 | Painting |
| The Adoration of the Shepherds | 1888 | |
| The Adoration of the Shepherds (The Joyful) | 1886 | Drawing |
| The Afternoon Nap (recto) | 1880 | Drawing |
| The artist's aunt | 1880 | Drawing |
| The artist's father in death | Date unknown | Drawing |
| The artist's mother | 1880 | Drawing |
| The Artist's Mother in Death | 1915 | Painting |
| The artist's sister Mitche and figure | Date unknown | Drawing |
| The Artist's Studio | 1930 | Painting |
| The Assassination | 1888 | |
| The Assassination | 1890 | Painting |
| The Bad Doctors | 1892 | Painting |
| The Bad Doctors | 1895 | |
| The Bad Doctors graphic | 1895 | |
| The Baths at Ostend | 1890 | Painting |
| The Baths at Ostend | 1899 | |
| The Baths at Ostende | 1899 | |
| The Battle of the Golden Spurs | 1891 | Drawing |
| The bird-garden | 1936 | Painting |
| The Bourgeois Salon | 1881 | Painting |
| The Bourgeois Salon II | 1911 | Painting |
| The Breakwater | 1878 | Painting |
| The Bridge in the Wood at Ostend | 1889 | |
| The Bridge in the Woods, Ostend (Le pont du bois a Ostende) | 1889 | |
| The cabbage | 1880 | Painting |
| The Canal | 1921 | Painting |
| The Cataclysms | 1888 | |
| The Cathedral | 1886 | |
| The Cathedral | 1886–1896 | |
| The Cathedral (La cathedrale) | 1886 | |
| The Cathedral (The Troopers Kès and Pruta Entering the City of Bise) | 1892 | Drawing |
| The Cemetery | 1888 | |
| The City Hall in Audenarde (L'hotel de ville d'Audenarde) | 1888 | |
| The Coach | Date unknown | Drawing |
| The Combat | 1896 | |
| The Convalescent | 1880 | Painting |
| The Conversation | Date unknown | Drawing |
| The Crypt | 1888 | |
| The cuirassiers of Waterloo | 1891 | Drawing |
| The Dangerous Cooks | 1896 | Painting |
| The Dead Cockerel | 1894 | Painting |
| The Dead Soldier | Date unknown | Drawing |
| The Deadly Sins Dominated by Death | 1904 | |
| The Death of the Holy Virgin | 1880 | Drawing |
| The Destroying Angel | 1889 | |
| The Devil and the Windmill | 1934 | |
| The Devils Dzitts and Hihahox, Commanded by Crazon Riding a Furious Cat, Leading Christ to Hell | 1886 | Drawing |
| The Devils Dzitts and Hihahox, Commanded by Crazon Riding a Furious Cat, Leading Christ to Hell | 1895 | |
| The Devils Dzitts and Hihanox Leading Christ into Hell | 1895 | |
| The Devils Dzitts and Hihanox Leading Christ to Hell | 1895 | |
| The dissolute mercenaries | 1892 | Drawing |
| The edge of the wood in Ostend | 1886 | Painting |
| The Elephant's Joke | 1888 | |
| The Entry of Christ into Brussels | 1895 | |
| The Entry of Christ into Brussels | 1898 | |
| The Entry of Christ into Brussels (L'entree du Christ a Bruxelles) | 1898 | |
| The Exterminating Angel | 1889 | |
| The Exterminating Angel (L'ange exterminateur) | 1889 | |
| The Fantastic Ball | 1889 | |
| The Fantastic Musicians | 1888 | |
| The Fight | 1896 | |
| The Fight | 1925 | Painting |
| The Flagellation | 1886 | |
| The Flaying | 1888 | |
| The fool | Date unknown | Drawing |
| The Gamblers | 1895 | |
| The Gamblers | 1896 | |
| The garden at café Tivoli in Ostend | 1876 | Painting |
| The Garden of Love | 1888 | |
| The Garden of Love | 1921 | Painting |
| The Garden of Love (1891) | 1891 | Painting |
| The Garden of Love (Toyota) | 1888 | Painting |
| The Garden of the Rousseau Family | 1885 | Painting |
| The Gendarmes | 1888 | |
| The gendarmes | 1892 | Painting |
| The Ghost | 1889 | |
| The Goldsmith Jan Lutma | Date unknown | Drawing |
| The Good Judges | 1894 | |
| The Grotesque Musicians | 1888 | |
| The Guitarist | Date unknown | Drawing |
| The Hands of Elisabeth Bas | 1880 | Drawing |
| The haunted cabinet | 1888 | |
| The Haunted Furniture | 1888 | |
| The Hunter | 1888 | |
| The Ice Skaters (Les Patineurs) | 1889 | |
| The infernal cortege | 1880 | |
| The Infernal Cortege | 1887 | |
| The Intrigue | 1890 | Painting |
| The Jolly Hunters | Date unknown | Drawing |
| The Journalist Paul de Cassagnac | Date unknown | Drawing |
| The lady in blue | 1881 | Painting |
| The Lady in Distress | 1882 | Painting |
| The Lady with Fan | 1880 | Painting |
| The Lady with Red Parasol | 1880 | Painting |
| The lampions | Date unknown | Drawing |
| The Lamplighter | 1880 | Painting |
| The Lamplighter | 1886 | Drawing |
| The language of flowers | 1938 | Painting |
| The Lighthouse at Ostend | 1885 | Painting |
| The Magdalene | 1887 | |
| The Main Dock of Ostend | 1888 | |
| The Main Dock, Ostend | 1888 | |
| The Marquise | 1911 | Painting |
| The Marsh | 1880 | Painting |
| The Mask's Wedding | 1926 | Painting |
| The Master Painter | Date unknown | Drawing |
| The Melancholy Fishwives | 1892 | Painting |
| The Multiplication of the Fishes | 1891 | |
| The Murder | 1888 | |
| The Music in the rue de Flandre, Ostend | 1890 | |
| The Mystical Death of a Divine | 1880 | Drawing |
| The Old Rascals | 1895 | |
| The Old ... Raskals | 1895 | |
| The Orchard | 1886 | |
| The Oyster Eater | 1882 | Painting |
| The Painter Alfred William Finch | 1880 | Painting |
| The Painter Edouard Manet | 1880 | Drawing |
| The Painter Edouard Manet | Date unknown | Drawing |
| The Painter Eugène Delacroix | Date unknown | Drawing |
| The Painter Gustave Courbet | Date unknown | Drawing |
| The Painter Jan Asselijn or "Crabbetje | 1880 | Drawing |
| The Painter Jean François Millet | Date unknown | Drawing |
| The Pancake Woman | 1880 | Drawing |
| The Parasol | 1880 | Painting |
| The piano | 1880 | Drawing |
| The Pisser | 1886 | |
| The Pisser | 1887 | |
| The Playwright Emile Augier | Date unknown | Drawing |
| The Poet Jean Richepin | Date unknown | Drawing |
| The Pool of the Poplars | 1889 | |
| The Pool of the Poplars graphic | 1889 | |
| The Port of Ostend (Vue du port d'Ostende) | 1888 | |
| The Procession at Gistel | 1934 | |
| The Procession of the Penitents at Furnes | 1935 | Painting |
| The Ray | 1892 | Painting |
| The Rebel Angels Struck by Lightning | 1907 | |
| The red mullet | 1880 | Painting |
| The Riding Crop | Date unknown | Drawing |
| The Roman Triumph | Date unknown | Drawing |
| The Rooftops of Ostend | 1884 | Painting |
| The rooftops of Ostend | 1901 | Painting |
| The Rower | 1883 | Painting |
| The Savoy Cabbage | 1884 | Painting |
| The scaffolding | 1880 | Drawing |
| The Scandalized Masks | 1883 | Painting |
| The Scavenger | 1896 | |
| The Scoundrels | 1896 | |
| The Seashells (Columbus) | 1895 | Painting |
| The Shadow on the House | 1933 | |
| The Skate | 1880 | Painting |
| The Skaters | 1888–1889 | |
| The Skaters | 1889 | |
| The Sleeper | 1887 | |
| The Small Boats | 1894 | |
| The Sombre Lady | 1881 | Painting |
| The Stars in the Cemetery | 1888 | |
| The strange masks | 1892 | Painting |
| The Street-Lamp | 1888 | |
| The strike | 1888 | Drawing |
| The Supper at Emmaus | 1880 | Drawing |
| The Temptation of Christ | 1888 | |
| The Temptation of Christ | 1913 | Painting |
| The Temptation of Saint Anthony | 1887–1888 | Drawing |
| The Temptation of Saint Anthony the Great | 1927 | Painting |
| The Terrible Archer | 1888 | |
| The Thunderstorm | 1889 | |
| The Tournament | 1894 | Drawing |
| The Tribulations of St. Anthony | 1909 | Painting |
| The Triumph of the Death | 1887 | Drawing |
| The Van Iseghemlaan in the snow | 1881 | Painting |
| The Vengeance of Hop-Frog | 1896 | Painting |
| The Virgin of Consolation | 1892 | Painting |
| The Wait | 1880 | Painting |
| The War of the Snails | 1911 | |
| The White Cloud | 1884 | Painting |
| The Windmill at Mariakerke | 1889 | |
| The wise judges | 1891 | Painting |
| The Wise Judges | 1894 | |
| The Youth of Orpheus | Date unknown | Drawing |
| Theatre of Masks | 1889 | Painting |
| Theatre of Masks (1908) | 1908 | Painting |
| Theo Hannon | 1880 | Drawing |
| Theo Hannon | 1881 | Painting |
| Theo Hannon met pijp | 1880 | Drawing |
| Three Silhouettes (recto) | 1880 | Painting |
| Tijgerjacht | Date unknown | Drawing |
| Toilettafel met wasstel en spiegel | Date unknown | Drawing |
| Tolstoï | Date unknown | Drawing |
| Toneelfiguren | Date unknown | Drawing |
| Toneelfiguur | Date unknown | Drawing |
| Toneelscène | 1910 | Drawing |
| Tovenaars in de stormwind | 1888 | |
| Town Hall of Audenaerde | 1888 | |
| Trap, man, gebladerte (detail) | Date unknown | Drawing |
| Treurende vrouw en leeuwenkop | 1870 | Drawing |
| Tribulations of Saint Anthony | 1887 | Painting |
| Triomftocht van een Romeinse Veldheer | Date unknown | |
| Triomphe romain | 1889 | |
| Trommelaar | Date unknown | Drawing |
| Twee danseressen | Date unknown | Drawing |
| Twee figuren | Date unknown | Drawing |
| Twee figuren en ornament | Date unknown | Drawing |
| Twee heren | Date unknown | Drawing |
| Twee heren en pauw | Date unknown | Drawing |
| Twee honden | 1894 | Drawing |
| Twee hoofddeksels en boerinnetjes | Date unknown | Drawing |
| Twee hoofden | Date unknown | Drawing |
| Twee hoofden, paar, hand | Date unknown | Drawing |
| Twee knapen in het gras | 1880 | Drawing |
| Twee koperen potten (verso) | 1880 | Drawing |
| Twee kopjes en afdruk | Date unknown | Drawing |
| Twee koppen en een hand | 1880 | Drawing |
| Twee militairen | Date unknown | Drawing |
| Twee naakten op de rug gezien | Date unknown | Drawing |
| Twee ridderfiguren | Date unknown | Drawing |
| Twee trappen en mand | Date unknown | Drawing |
| Twee vrouwen | Date unknown | Drawing |
| Twee vrouwen en een theoloog | Date unknown | Drawing |
| Twee windmolens, zeilboot en kleine marine | Date unknown | Drawing |
| Twee zeilboten | Date unknown | Drawing |
| Twee zeilboten en een windmolen | 1950 | Drawing |
| Tweearmige pianokandelaar en muziekblad | Date unknown | Drawing |
| Two Arabs | Date unknown | Drawing |
| Two Dogs | Date unknown | Drawing |
| Two draught horses | Date unknown | Drawing |
| Two Gentlemen Smoking | Date unknown | Drawing |
| Two heads and a spinning-wheel | Date unknown | Drawing |
| Two masks | 1880 | Drawing |
| Two masks | Date unknown | Drawing |
| Two Nude Figures | Date unknown | Drawing |
| Two spoons and a curtain | 1885 | Drawing |
| Two Women | Date unknown | Drawing |
| Two women on a beach | Date unknown | Drawing |
| Un bon coin chez moi | 1938 | Painting |
| Under the Shadow of Masks | 1925–1937 | Painting |
| Untitled | Date unknown | |
| V. De Heilige Familie (uit: Taferelen uit het leven van Christus) | 1921 | |
| V. La Sainte Famille | Date unknown | |
| Vaas en vliegende eend | Date unknown | Drawing |
| Vaas en voeten (recto) | 1880 | Drawing |
| Vaas met bloemen | Date unknown | Drawing |
| Vaas met bloemen en schelp | 1932 | Drawing |
| Vaas met bloemornamenten | Date unknown | Drawing |
| Vaas met vismotief en vrouw met bloemenvaas | 1880 | Drawing |
| Vaas, paard en figuren (verso) | 1880 | Drawing |
| Vaas, spinnewiel, soldaten, vrouwen | Date unknown | Drawing |
| Vader (?) en moeder van Ensor | 1870 | Drawing |
| Van Iseghemlaan, Oostende | 1889 | |
| Van Izegemlaan in Ostend | 1880 | Drawing |
| Varken en silhouetten | Date unknown | Drawing |
| Verhaal zonder woorden (of) De jagers in de winter | 1881 | Drawing |
| Verovering van een vreemde stad | 1888 | |
| Verpesting beneden, verpesting boven, verpesting overal | 1904 | |
| verzameling van 184 etsen | Date unknown | |
| VI. De besnijdenis (uit: Taferelen uit het leven van Christus) | 1921 | |
| VI. La Circoncision | Date unknown | |
| Vier naakten | Date unknown | Drawing |
| Vier schouwburgbezoekers | Date unknown | Drawing |
| View of a beach with two boats | Date unknown | Drawing |
| View of a street with a barrow, a streetlamp and a man sitting on a bench | Date unknown | Drawing |
| View of Mariakerke | 1901 | Painting |
| View of Nieuport | 1888 | |
| View of Ostend in the East | 1888 | |
| View of Phnosie, luminous waves and vibrations | 1890 | Painting |
| View of the Ostend Harbour | 1888 | |
| View of the Van Iseghemlaan | 1906 | Painting |
| VII. De doop van Christus (uit: Taferelen uit het leven van Christus) | 1921 | |
| VII. Le Baptême du Christ | Date unknown | |
| VIII. Christus bij de schriftgeleerden (uit: Taferelen uit het leven van Christus) | 1921 | |
| VIII. Le Christ et les docteurs | Date unknown | |
| Vijf personages in een boot (verso) | 1880 | Drawing |
| Village Fair at the Windmill | 1889 | |
| Vissen op een schotel | Date unknown | Drawing |
| Visser met paard | Date unknown | Drawing |
| Vlam | Date unknown | Drawing |
| Vleugel tegen zonnestralen | Date unknown | Drawing |
| Vlucht naar Egypte | 1921 | |
| Vlugge schetsen van bedelaars | Date unknown | Drawing |
| Voetpaadje in Groenendaal | 1888 | |
| Voetpaadje te Groenendaal | 1888 | |
| Vogel en hond bij tak | Date unknown | Drawing |
| Voor de alcade | Date unknown | Drawing |
| Voorovergebogen figuren | 1880 | Drawing |
| Voorovergebogen figuur en tekst | Date unknown | Drawing |
| Vrouw aan klavier en Alfred William Finch | Date unknown | Drawing |
| Vrouw die pannenkoeken bakt | Date unknown | Drawing |
| Vrouw en hondje | Date unknown | Drawing |
| Vrouw, handen en kar | 1881 | Drawing |
| Vrouw in profiel gezien | Date unknown | Drawing |
| Vrouw - man en paard | 1880 | Drawing |
| Vrouw met hoed | Date unknown | Drawing |
| Vrouw met kind, zittend en staand paar | Date unknown | Drawing |
| Vrouw met naaiwerk | 1880 | Drawing |
| Vrouw met neergeslagen blik | Date unknown | Drawing |
| Vrouwenhoofd | 1883 | Drawing |
| Vrouwenhoofd | Date unknown | Drawing |
| Vrouwenhoofd en figuren | Date unknown | Drawing |
| Vrouwenhoofd en zittende figuur | Date unknown | Drawing |
| Vrouwenkop en figuurtjes | Date unknown | Drawing |
| Vrouwenkop en silhouetten | Date unknown | Drawing |
| Vrouwenprofiel (Mariette Rousseau) en andere figuren | 1885 | Drawing |
| Vue d'Ostende | 1893 | Painting |
| Vue D'Ostende à L'est | 1888 | |
| Vue de Nieuport | 1888 | |
| Vue du port d' Ostende | 1888 | |
| Waaier, lamp en figuren (recto) | 1880 | Drawing |
| Walkurengenoegens | Date unknown | Drawing |
| Wandelaar | 1883 | Drawing |
| Wasvrouwen bij de Middellandse zee | Date unknown | Drawing |
| Weggeveegde tekening | Date unknown | Drawing |
| Wenken der nimfen | 1923 | Drawing |
| Wenteltrap | Date unknown | Drawing |
| White and Red Clowns Evolving | 1890 | Drawing |
| Willy Finch in his Studio | 1880 | Painting |
| Willy Finch in the Studio | 1880 | Painting |
| Windmill | Date unknown | Drawing |
| Windmill and boats | Date unknown | Drawing |
| Windmill at Skykens | 1891 | |
| Windmill at Slijkens (Bredene) | 1891 | |
| Windmill at Slykens | 1891 | |
| Windmill "Den Oranjenboom | Date unknown | Drawing |
| Windmolen met zeilboot en met kerk | Date unknown | Drawing |
| Windstoot in het geboomte | 1888 | |
| Wit paard, stoel en figuren | 1880 | Drawing |
| Witches in the Whirlwind | 1896 | Drawing |
| Wizards in a Squall | 1888 | |
| Woman | Date unknown | Drawing |
| Woman on a Breakwater | 1880 | Painting |
| Woman reading | Date unknown | Drawing |
| Woman with a Hood and a Wasp | 1885 | Drawing |
| Woman with Blue Shawl | 1881 | Painting |
| Wordly meeting | Date unknown | Drawing |
| X. Laat de kleinen tot mij komen (uit: Taferelen uit het leven van Christus) | 1921 | |
| X. Laissez venir à moi les petits enfants | Date unknown | |
| XI. Christus drijft de duivel uit bij een bezetene (uit: Taferelen uit het leven van Christus) | 1921 | |
| XI. Le Christ chassant le Démon du corps d'un possédé | Date unknown | |
| XII. Christus bedaart de storm (uit: Taferelen uit het leven van Christus) | 1921 | |
| XII. Le Christ apaisant la tempête | Date unknown | |
| XIII. De wonderbare visvangst (uit: Taferelen uit het leven van Christus) | 1921 | |
| XIII. La Pêche miraculeuse | Date unknown | |
| XIV. Christus loopt op het water (uit: Taferelen uit het leven van Christus) | 1921 | |
| XIV. Le Christ marchant sur la mer | Date unknown | |
| XIX. Christus ter berechting overgeleverd aan de schriftgeleerden (uit: Taferelen uit het leven van Christus) | 1921 | |
| XIX. Le Christ aux critiques | Date unknown | |
| XV. De intrede in Jeruzalem (uit: Taferelen uit het leven van Christus) | 1921 | |
| XV. L'entrée à Jérusalem | Date unknown | |
| XVI. Het Laatste Avondmaal (uit: Taferelen uit het leven van Christus) | 1921 | |
| XVI. La Cène | Date unknown | |
| XVII. De judaskus (uit: Taferelen uit het leven van Christus) | 1921 | |
| XVII. Le baiser de Judas | Date unknown | |
| XVIII. De bespotting van Christus (uit: Taferelen uit het leven van Christus) | 1921 | |
| XVIII. Le Christ aux outrages | Date unknown | |
| XX. De geseling (uit: Taferelen uit het leven van Christus) | 1921 | |
| XX. La Flagellation | Date unknown | |
| XXI. De kruisweg (uit: Taferelen uit het leven van Christus) | 1921 | |
| XXI. La montée au Calvaire | Date unknown | |
| XXII. De kruisoprichting (uit: Taferelen uit het leven van Christus) | 1921 | |
| XXII. L'Élévation en croix | Date unknown | |
| XXIII. Christus tussen de moordenaars (uit: Taferelen uit het leven van Christus) | 1921 | |
| XXIII. Le Christ entre les larrons | Date unknown | |
| XXIV. De kruisafneming (uit: Taferelen uit het leven van Christus) | 1921 | |
| XXIV. La Descente de croix | Date unknown | |
| XXIX. De Heilige Geest verlicht de apostelen (uit: Taferelen uit het leven van Christus) | 1921 | |
| XXIX. Le Saint Esprit éclairant les Apôtres | Date unknown | |
| XXV. Le retour du Calvaire | Date unknown | |
| XXV. Terugkeer van de Calvarieberg (uit: Taferelen uit het leven van Christus) | 1921 | |
| XXVI. Le Christ sur les genoux de sa mère | Date unknown | |
| XXVI. Piëta (uit: Taferelen uit het leven van Christus) | 1921 | |
| XXVII. Christus en de engelen (uit: Taferelen uit het leven van Christus) | 1921 | |
| XXVII. Le Christ et les Anges | Date unknown | |
| XXVIII. De Hemelvaart (uit: Taferelen uit het leven van Christus) | 1921 | |
| XXVIII. L'Ascension | Date unknown | |
| XXX. De Tenhemelopneming van Maria (uit: Taferelen uit het leven van Christus) | 1921 | |
| XXX. L'Assomption | Date unknown | |
| XXXI. De engelen vereren Maria (uit: Taferelen uit het leven van Christus) | 1921 | |
| XXXI. La Vierge adorée par les Anges | Date unknown | |
| Yellow Apples | 1880 | Painting |
| Young Boy | 1882 | Drawing |
| Zakmes met bewerkte hecht | Date unknown | Drawing |
| Zeilboot | Date unknown | Painting |
| Zeilboot, dorpskerk en windmolen | Date unknown | Drawing |
| Zeilbootje | Date unknown | Drawing |
| Zeilboten | 1890 | Drawing |
| Zeilboten | Date unknown | Drawing |
| Zelfportret | 1919 | Drawing |
| Zelfportret en figuren - Ensor en zijn familie | 1886 | Drawing |
| Zelfportret onder leeuwenjacht | Date unknown | Drawing |
| Zelfportret ("Pas fini") | 1885 | Drawing |
| Zicht op Nieuwpoort | 1888 | |
| Zieke luizenbos bij de kachel | 1895 | |
| Zittend meisje en twee figuurtjes | 1917 | Drawing |
| Zittend naakt met gekruiste benen | Date unknown | Drawing |
| Zittende en staande heer | Date unknown | Drawing |
| Zolder, trap en mand (verso) | Date unknown | Drawing |
| Zonderlinge insecten | 1888 |
Frequently Asked Questions
KMSKA’s current English record uses Astonishment of the Mask Wouse, with Wouse, for inventory 2042.[1] Variant spellings may appear elsewhere, but they should not replace the holding museum’s title. The origin and intended sense of “Wouse” remain unproven.[2]
Ensor signed and dated the oil painting in 1889. It belongs to the Royal Museum of Fine Arts Antwerp, where it has inventory number 2042 and measures 109 × 131.5 cm.[1] An institutional essay records it in the museum’s possession since 1926.[2]
There is no established identification. The full-length figure is a plausible candidate, but it is unclear whether she represents a person in a mask or a mask acting like a person. Suggestions that she depicts Ensor’s mother or grandmother remain hypotheses, and the word “Wouse” has no securely demonstrated derivation.[1][2]
KMSKA identifies the floorboard interior as Ensor’s attic studio, and biographical evidence confirms that he worked in an attic at his family home in Ostend.[1][4] The masks, clothing and instruments could draw on real possessions, but the painting is an arranged invention rather than a dependable inventory or snapshot.
It explores the uncertain boundary between object and actor. Costume gives a mask bodily presence; scattered things imply a halted performance; a skeleton behaves as a candle-bearer. The work can suggest interruption, ridicule or enchantment, but KMSKA expressly leaves its narrative unresolved.[1]
Discussion
Use this evidence-led guide as a starting point for close looking rather than a final verdict.
Share an observation about Astonishment of the Mask Wouse or a source that adds useful context.
Reader Insights
Which detail most changes your reading of Astonishment of the Mask Wouse?
How do scale, support, medium or present museum evidence shape the encounter?
What remains uncertain when visual inference is separated from documented fact?
Join the Conversation
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References
- Royal Museum of Fine Arts Antwerp (KMSKA), “Astonishment of the Mask Wouse”. View source; accessed 30 August 2026.
- Flemish Art Collection, “Who Is Hiding Behind the Mask in The Astonishment of the Mask Wouse?”. View source; Xavier Tricot; accessed 30 August 2026.
- Flemish Art Collection, “Masks”. View source; Inne Gheeraert; James Ensor: An Online Museum; accessed 30 August 2026.
- Flemish Art Collection, “Biography”. View source; Herwig Todts, with Cathérine Verleysen and Robert Hoozee; James Ensor: An Online Museum; accessed 30 August 2026.
- Museum of Modern Art, “James Ensor: Masks Confronting Death”. View source; accessed 30 August 2026.
- Royal Museum of Fine Arts Antwerp (KMSKA), “The Intrigue”. View source; accessed 30 August 2026.
- Flemish Art Collection and Mu.ZEE, “Self-Portrait with Flowered Hat”. View source; accessed 30 August 2026.
- Royal Museums of Fine Arts of Belgium, “Squelettes se disputant un hareng saur”. View source; accessed 30 August 2026.










