Redigerer Oscar for beste kvinnelige birolle (avsnitt)

==1940-tallet==

<gallery mode="packed">
Fil:Jane_Darwell_1945.JPG|1940<br />Darwell
Fil:Mary_Astor-1930s.JPG|1941<br />Astor
Fil:Teresa_Wright_1942.jpg|1942<br />Wright
Fil:Katína_Paxinoú_in_For_Whom_the_Bell_Tolls_trailer.jpg|1943<br />Paxinou
Fil:Ethel_Barrymore_LOC.jpg|1944<br />Barrymore
Fil:Anne_Revere_in_Gentleman's_Agreement_trailer_cropped.jpg|1945<br />Revere
Fil:Anne_Baxter_1961.JPG|1946<br />Baxter
Fil:Celeste_Holm-1955.jpg|1947<br />Holm
Fil:Claire_Trevor-still.jpg|1948<br />Trevor
Fil:Mercedes_McCambridge_-_1950.jpg|1949<br />McCambridge
</gallery>

*'''[[1949]] – [[Mercedes McCambridge]]''' for rollen som Sadie Burke i ''[[Det kan hende overalt]] (All the King's Men)''
** [[Ethel Barrymore]] – ''[[Pinky]]'' (Pinky)
** [[Celeste Holm]] – ''[[Det går med et smil]]'' (Come to the Stable)
** [[Elsa Lanchester]] – ''[[Det går med et smil]]'' (Come to the Stable)
** [[Ethel Waters]] – ''[[Pinky]]'' (Pinky)

*'''[[1948]] – [[Claire Trevor]]''' for rollen som Gaye i ''[[Stormvarsel]]'' (Key Largo)
** [[Barbara Bel Geddes]] – ''[[Vi kan stole på mamma]]'' (I Remember Mama)
** [[Ellen Corby]] – ''[[Vi kan stole på mamma]]'' (I Remember Mama)
** [[Agnes Moorehead]] – ''[[Johnny Belinda]]'' (Johnny Belinda)
** [[Jean Simmons]] – ''[[Hamlet (1948)|Hamlet]]'' (Hamlet)

*'''[[1947]] – [[Celeste Holm]]''' for rollen som Anne i ''[[Mellom gentlemenn]]'' (Gentleman's Agreement)
** [[Ethel Barrymore]] – ''[[Sannheten om Mrs. Paradine]]'' (The Paradine Case)
** [[Gloria Grahame]] – ''[[Kryssild (film)|Kryssild]]'' (Crossfire)
** [[Marjorie Main]] – ''[[Egget og jeg]]'' (The Egg and I)
** [[Anne Revere]] – ''[[Mellom gentlemenn]]'' (Gentleman's Agreement)

*'''[[1946]] – [[Anne Baxter]]''' for rollen som Sophie MacDonald i ''[[Knivseggen]]'' (The Razor's Edge)
** [[Ethel Barrymore]] – ''[[Vindeltrappen]]'' (The Spiral Staircase)
** [[Lillian Gish]] – ''[[Duell i solen]]'' (Duel in the Sun)
** [[Flora Robson]] – ''[[Høyt spill i Saratoga]]'' (Saratoga Trunk)
** [[Gale Sondergaard]] – ''[[Eventyr i Siam]]'' (Anna and the King of Siam)

*'''[[1945]] – [[Anne Revere]]''' for rollen som fru Brown i ''[[Over alle hindre]]'' (National Velvet)
** [[Eve Arden]] – ''[[Mildred Pierce]]'' (Mildred Pierce)
** [[Ann Blyth]] – ''[[Mildred Pierce]]'' (Mildred Pierce)
** [[Angela Lansbury]] – ''[[Bildet av Dorian Gray (film)|Bildet av Dorian Gray]]'' (The Picture of Dorian Gray)
** [[Joan Lorring]] – ''[[The Corn Is Green]]''

*'''[[1944]] – [[Ethel Barrymore]]''' for rollen som Ma Mott i ''[[None But the Lonely Heart]]''
** [[Jennifer Jones]] – ''[[Da du reiste fra oss]]'' (Since You Went Away)
** [[Angela Lansbury]] – ''[[Gasslys]]'' (Gaslight)
** [[Aline MacMahon]] – ''[[Dragon Seed]]''
** [[Agnes Moorehead]] – ''[[Mrs. Parkington]]''

*'''[[1943]] – [[Katina Paxinou]]''' for rollen som Pilar i ''[[Klokkene ringer for deg (film)|Klokkene ringer for deg]]'' (For Whom the Bell Tolls)
** [[Gladys Cooper]] – ''[[Sangen om Bernadette]]'' (The Song of Bernadette)
** [[Paulette Goddard]] – ''[[Stolt hilser vi]]'' (So Proudly We Hail!)
** [[Anne Revere]] – ''[[Sangen om Bernadette]]'' (The Song of Bernadette)
** [[Lucile Watson]] – ''[[En dag skal komme]]'' (Watch on the Rhine)

*'''[[1942]] – [[Teresa Wright]]''' for rollen som Carol Beldon i ''[[Mrs. Miniver]]''
** [[Gladys Cooper]] – ''[[Under nye stjerner]]'' (Now, Voyager)
** [[Agnes Moorehead]] – ''[[Familien Amberson]]'' (The Magnificent Ambersons)
** [[Susan Peters]] – ''[[Ut av skodden]]'' (Random Harvest)
** [[May Whitty]] – ''[[Mrs. Miniver]]''

*'''[[1941]] – [[Mary Astor]]''' for rollen som Sandra Kovak i ''[[Den store løgnen]]'' (The Great Lie)
** [[Sara Allgood]] – ''[[Grønn var min barndoms dal (film)|Grønn var min barndoms dal]]'' (How Green Was My Valley)
** [[Patricia Collinge]] – ''[[Kvinnen uten hjerte]]'' (The Little Foxes)
** [[Teresa Wright]] – ''[[Kvinnen uten hjerte]]'' (The Little Foxes)
** [[Margaret Wycherly]] – ''[[Sersjant York]]'' (Sergeant York)

*'''[[1940]] – [[Jane Darwell]]''' for rollen som Ma Joad i ''[[Vredens druer (film)|Vredens druer]]'' (The Grapes of Wrath)
** [[Judith Anderson]] – ''[[Rebecca (film)|Rebecca]]'' (Rebecca)
** [[Ruth Hussey]] – ''[[En nydelig historie]]'' (The Philadelphia Story)
** [[Barbara O'Neil]] – ''[[Alt dette og himlen også]]'' (All This and Heaven Too)
** [[Marjorie Rambeau]] – ''[[Primrose Path]]''