Giải Oscar cho nữ diễn viên chính xuất sắc nhất
Danh sách cụ thể > Thập niên 1920/30

| Năm | Diễn viên | Vai diễn | Phim | Chú thích |
| --- | --- | --- | --- | --- |
| 1927/28  (1)  | Janet Gaynor ‡ | Diane Angela Người vợ | 7th Heaven Street Angel Sunrise: A Song of Two Humans |  |
| 1927/28  (1)  | Louise Dresser | Mrs. Pleznik | A Ship Comes In |  |
| 1927/28  (1)  | Gloria Swanson | Sadie Thompson | Sadie Thompson |  |
| 1928/29 (2)  | Mary Pickford ‡ | Norma Besant | Coquette |  |
| 1928/29 (2)  | Ruth Chatterton | Jacqueline Floriot | Madame X |  |
| 1928/29 (2)  | Betty Compson | Carrie | The Barker |  |
| 1928/29 (2)  | Jeanne Eagels | Leslie Crosbie | The Letter |  |
| 1928/29 (2)  | Corinne Griffith | Emma Hamilton | The Divine Lady |  |
| 1928/29 (2)  | Bessie Love | Hank Mahoney | The Broadway Melody |  |
| 1929/30  (3)  | Norma Shearer ‡ | Jerry Bernard Martin | The Divorcee |  |
| 1929/30  (3)  | Nancy Carroll | Hallie Hobart | The Devil's Holiday |  |
| 1929/30  (3)  | Ruth Chatterton | Sarah Storm | Sarah and Son |  |
| 1929/30  (3)  | Greta Garbo | Anna Christie Madame Rita Cavallini | Anna Christie Romance |  |
| 1929/30  (3)  | Norma Shearer | Lucia Marlett | Their Own Desire |  |
| 1929/30  (3)  | Gloria Swanson | Marion Donnell | The Trespasser |  |
| 1930/31  (4)  | Marie Dressler ‡ | Min Divot | Min and Bill |  |
| 1930/31  (4)  | Marlene Dietrich | Mademoiselle Amy Jolly | Morocco |  |
| 1930/31  (4)  | Irene Dunne | Sabra Cravat | Cimarron |  |
| 1930/31  (4)  | Ann Harding | Linda Seton | Holiday |  |
| 1930/31  (4)  | Norma Shearer | Jan Ashe | A Free Soul |  |
| 1931/32  (5)  | Helen Hayes ‡ | Madelon Claudet | The Sin of Madelon Claudet |  |
| 1931/32  (5)  | Marie Dressler | Emma Thatcher Smith | Emma |  |
| 1931/32  (5)  | Lynn Fontanne | The Actress | The Guardsman |  |
| 1932/33  (6)  | Katharine Hepburn ‡ | Eva Lovelace | Morning Glory |  |
| 1932/33  (6)  | May Robson | Apple Annie | Lady for a Day |  |
| 1932/33  (6)  | Diana Wynyard | Jane Marryot | Cavalcade |  |
| 1934  (7)  | Claudette Colbert ‡ | Ellie Andrews | It Happened One Night |  |
| 1934  (7)  | Grace Moore | Mary Barrett | One Night of Love |  |
| 1934  (7)  | Norma Shearer | Elizabeth Barrett | The Barretts of Wimpole Street |  |
| 1934  (7)  | Bette Davis (ứng cử bổ sung)  | Mildred Rogers | Of Human Bondage |  |
| 1935  (8)  | Bette Davis ‡ | Joyce Heath | Dangerous |  |
| 1935  (8)  | Elisabeth Bergner | Gemma Jones | Escape Me Never |  |
| 1935  (8)  | Claudette Colbert | Jane Everest | Private Worlds |  |
| 1935  (8)  | Katharine Hepburn | Alice Adams | Alice Adams |  |
| 1935  (8)  | Miriam Hopkins | Becky Sharp | Becky Sharp |  |
| 1935  (8)  | Merle Oberon | Kitty Vane | The Dark Angel |  |
| 1936  (9)  | Luise Rainer ‡ | Anna Held | The Great Ziegfeld |  |
| 1936  (9)  | Irene Dunne | Theodora Lynn | Theodora Goes Wild |  |
| 1936  (9)  | Gladys George | Carrie Snyder | Valiant Is the Word for Carrie |  |
| 1936  (9)  | Carole Lombard | Irene Bullock | My Man Godfrey |  |
| 1936  (9)  | Norma Shearer | Juliet Capulet | Romeo and Juliet |  |
| 1937  (10)  | Luise Rainer ‡ | O-Lan | The Good Earth |  |
| 1937  (10)  | Irene Dunne | Lucy Warriner | The Awful Truth |  |
| 1937  (10)  | Greta Garbo |  Marguerite Gautier | Camille |  |
| 1937  (10)  | Janet Gaynor | Esther Victoria Blodgett / Vicki Lester | A Star Is Born |  |
| 1937  (10)  | Barbara Stanwyck | Stella Martin Dallas | Stella Dallas |  |
| 1938  (11)  | Bette Davis ‡ | Julie Marsden | Jezebel |  |
| 1938  (11)  | Fay Bainter | Hannah Parmalee | White Banners |  |
| 1938  (11)  | Wendy Hiller | Eliza Doolittle | Pygmalion |  |
| 1938  (11)  | Norma Shearer | Maria Antonia của Áo | Marie Antoinette |  |
| 1938  (11)  | Margaret Sullavan | Patricia "Pat" Hollmann | Three Comrades |  |
| 1939  (12)  | Vivien Leigh ‡ | Scarlett O'Hara | Cuốn theo chiều gió |  |
| 1939  (12)  | Bette Davis | Judith Traherne | Dark Victory |  |
| 1939  (12)  | Irene Dunne | Terry McKay | Love Affair |  |
| 1939  (12)  | Greta Garbo | Nina Yakushova "Ninotchka" Ivanoff | Ninotchka |  |
| 1939  (12)  | Greer Garson | Katherine Bridges | Goodbye, Mr. Chips |  |