This is a list of winners of the Academy Award for Performance by an Actress in a Supporting Role, presented annually by the Academy of Motion Picture Arts and Sciences (AMPAS) to an actress who has delivered an outstanding performance while working within the film industry. More popularly known as the Academy Award (or the Oscar) for Best Supporting Actress, this award was initially presented at the 9th Academy Awards ceremony for 1936 and was most recently presented at the 93rd Academy Awards ceremony for 2020 and early 2021. Throughout the past 85 years, accounting for ties and repeat winners, AMPAS has presented a total of 85 Best Supporting Actress awards to 83 different actresses. This list is current as of the 93rd Academy Awards ceremony held on April 25, 2021.