Academy Award untuk Aktris Pendukung Terbaik
Pemenang dan nominasi > 1940-an

| Tahun | Aktor | Film | Peran |
| --- | --- | --- | --- |
1940 (13th): 
| 1940 (13th) | Jane Darwell | The Grapes of Wrath | Ma Joad |
| 1940 (13th) | Judith Anderson | Rebecca | Mrs. Danvers |
| 1940 (13th) | Ruth Hussey | The Philadelphia Story | Elizabeth Imbrie |
| 1940 (13th) | Barbara O'Neil | All This and Heaven Too | Duchesse de Praslin |
| 1940 (13th) | Marjorie Rambeau | Primrose Path | Mamie Adams |
1941 (14th): 
| 1941 (14th) | Mary Astor | The Great Lie | Sandra Kovak |
| 1941 (14th) | Sara Allgood | How Green Was My Valley | Beth Morgan |
| 1941 (14th) | Patricia Collinge | The Little Foxes | Birdie Hubbard |
| 1941 (14th) | Teresa Wright | The Little Foxes | Alexandra Giddens |
| 1941 (14th) | Margaret Wycherly | Sergeant York | Mother York |
1942 (15th): 
| 1942 (15th) | Teresa Wright | Mrs. Miniver | Carol Beldon |
| 1942 (15th) | Gladys Cooper | Now, Voyager | Mrs. Vale |
| 1942 (15th) | Agnes Moorehead | The Magnificent Ambersons | Fanny Minafer |
| 1942 (15th) | Susan Peters | Random Harvest | Kitty Chilcet |
| 1942 (15th) | May Whitty | Mrs. Miniver | Lady Beldon |
1943 (16th): 
| 1943 (16th) | Katina Paxinou | For Whom the Bell Tolls | Pilar |
| 1943 (16th) | Gladys Cooper | The Song of Bernadette | Sister Marie Therese Vauzous |
| 1943 (16th) | Paulette Goddard | So Proudly We Hail! | Lt. Joan O'Doul |
| 1943 (16th) | Anne Revere | The Song of Bernadette | Louise Soubirous |
| 1943 (16th) | Lucile Watson | Watch on the Rhine | Fanny Farrelly |
1944 (17th): 
| 1944 (17th) | Ethel Barrymore | None but the Lonely Heart | Ma Mott |
| 1944 (17th) | Jennifer Jones | Since You Went Away | Jane Deborah Hilton |
| 1944 (17th) | Angela Lansbury | Gaslight | Nancy Oliver |
| 1944 (17th) | Aline MacMahon | Dragon Seed | Ling Tan's Wife |
| 1944 (17th) | Agnes Moorehead | Mrs. Parkington | Baroness Aspasia Conti |
1945 (18th): 
| 1945 (18th) | Anne Revere | National Velvet | Araminty Brown |
| 1945 (18th) | Eve Arden | Mildred Pierce | Ida Corwin |
| 1945 (18th) | Ann Blyth | Mildred Pierce | Veda Pierce Forrester |
| 1945 (18th) | Angela Lansbury | The Picture of Dorian Gray | Sibyl Vane |
| 1945 (18th) | Joan Lorring | The Corn is Green | Bessie Watty |
1946 (19th): 
| 1946 (19th) | Anne Baxter | The Razor's Edge | Sophie MacDonald |
| 1946 (19th) | Ethel Barrymore | The Spiral Staircase | Mrs. Warren |
| 1946 (19th) | Lillian Gish | Duel in the Sun | Laura Belle McCanles |
| 1946 (19th) | Flora Robson | Saratoga Trunk | Angelique Buiton |
| 1946 (19th) | Gale Sondergaard | Anna and the King of Siam | Lady Thiang |
1947 (20th): 
| 1947 (20th) | Celeste Holm | Gentleman's Agreement | Anne Dettrey |
| 1947 (20th) | Ethel Barrymore | The Paradine Case | Lady Sophie Horfield |
| 1947 (20th) | Gloria Grahame | Crossfire | Ginny Tremaine |
| 1947 (20th) | Marjorie Main | The Egg and I | Ma Kettle |
| 1947 (20th) | Anne Revere | Gentleman's Agreement | Mrs. Green |
1948 (21st): 
| 1948 (21st) | Claire Trevor | Key Largo | Gaye Dawn |
| 1948 (21st) | Barbara Bel Geddes | I Remember Mama | Katrin Hanson |
| 1948 (21st) | Ellen Corby | I Remember Mama | Aunt Trina |
| 1948 (21st) | Agnes Moorehead | Johnny Belinda | Aggie McDonald |
| 1948 (21st) | Jean Simmons | Hamlet | Ophelia |
1949 (22nd): 
| 1949 (22nd) | Mercedes McCambridge | All the King's Men | Sadie Burke |
| 1949 (22nd) | Ethel Barrymore | Pinky | Miss Em |
| 1949 (22nd) | Celeste Holm | Come to the Stable | Sister Scholastica |
| 1949 (22nd) | Elsa Lanchester | Come to the Stable | Amelia Potts |
| 1949 (22nd) | Ethel Waters | Pinky | Dicey Johnson |