| Date | Dimensions | Medium | Owner | Title |
| | Oil on canvas | | Study for Smile |
| | Photograph | | Alex Katz |
| 1953-54 | 18" x 24" | Oil on canvas | Colby College Museum of Art | Camden, Maine |
| 1955-56 | 4 1/2" x 7" | Collage | | Road Master |
| 1955 | 4" x 6" | Collage | | Man with Dog |
| 1957 | 12" x 16" | Oil on canvas | Colby College Museum of Art | Two Trees on Hillside |
| 1957 | 3 3/4" x 5 3/4" | Collage | | Three People |
| 1958 | | | | Ada in a Purple Dress |
| 1958 | 60" x 48" | Oil on canvas | | Ada in White Dress |
| 1959 | | | | Blueberry Fields |
| 1959 | | | | Sleeping Figure |
| 1961 | 36" x 26" | Oil on masonite | Colby College Museum of Art | Vincent and Ada at Ducktrap |
| 1961 | 83 1/2" x 71 3/4" | Oil on canvas | Colby College Museum of Art | Rockaway |
| 1963 | 78 3/4" x 114 3/4" | Oil on canvas | Whitney Museum of Art | The Red Smile |
| 1965 | | Photograph | | Alex and 'Cocktail Party' (by Burckhardt) |
| 1965 | 16 1/2" x 19 7/8" | Oil on canvas | Colby College Museum of Art | Ada in Blue Scarf |
| 1965 | 40" x 29 3/4" | Screenprint | Colby College Museum of Art | Luna Park I |
| 1967 | 36" x 72" | Oil on canvas | | Iris |
| 1969 | 21 3/4" x 27 3/4" | Lithograph | Colby College Museum of Art | Day Lily I |
| 1971 | 17 5/8 X 23 5/8" | Collage, oil, paper on masonite | Colby College Museum of Art | Provincetown |
| 1974 | 12" x 16" | Oil on masonite | Colby College Museum of Art | Good Morning #1 |
| 1975 | | Lithograph | Corcoran Gallery of Art, Washington, D.C. | Washington |
| 1978 | 6' x 8' | Oil on canvas | Alex Katz (on loan to CCMA) | His Behind the Back Pass |
| 1979 | 46" x 21" | Etching with aquatint, cut plate silhouette | Metropolitan Museum of Art | Boy with Striped Shirt |
| 1979 | 96 x 72 | Oil on canvas | | East Interior |
| 1982 | 120" x 72" | Oil on canvas | Colby College Museum of Art | Tracy on the Raft at 7:30 |
| 1984 | 72" 48" x 1/8" | Oil on aluminum | Colby College Museum of Art | Milly and Sally |
| 1985 | | | | Bather |
| 1987 | 40 1/8" x 96" | Oil on canvas | | Sweatshirt 111 |
| 1988 | 67 1/2" x 24 1/4" x 1/8" | Screenprint on cut aluminum | Colby College Museum of Art | Anne |
| 1992 | 30" x 67" | Aquatint | Colby College Museum of Art | Forest |
| 1994 | 36" x 20" | Serigraphs (series of 5) | | Pas de Deux |
| 1998 | 19" x 16" | Linocut with pochoir on paper | Colby College Museum of Art | Black and Gold |