Tatum O'Neal won Best Supporting Actress for Paper Moon(1973) when she was 10! Anna Paquin won Best Supporting Actress for The Piano (1993) when she was 11.
The winner of the 2007 Oscar for Best Supporting Actress was Jennifer Hudson for Dreamgirls (2006).
The Academy Award for Best Supporting Actress of 1989 went to Ireland's Brenda Fricker for her performance in "My Left Foot."
It is something of a tragedy when an actress like Thelma Ritter gives so many Oscar worthy performances and never wins an Oscar. Thelma Ritter was nominated six times.Nominated Oscar Best Actress in a Supporting Role for: Birdman of Alcatraz (1962)Nominated Oscar Best Actress in a Supporting Role for: Pillow Talk (1959)Nominated Oscar Best Actress in a Supporting Role for: Pickup on South Street (1953)Nominated Oscar Best Actress in a Supporting Role for: With a Song in My Heart (1952)Nominated Oscar Best Actress in a Supporting Role for: The Mating Season (1951)Nominated Oscar Best Actress in a Supporting Role for: All About Eve (1950)Thelma Ritter currently holds the record for most nominations in this category without ever winning. Deborah Kerr ties her record for most nominations in the Best Actress category without ever winning.
Angelina Jolie won the Oscar for Best Actress in a Supporting Role in 1999.
Anjelica Huston won the Oscar for Best Actress in a Supporting Role in 1985.
Anne Revere won the Oscar for Best Actress in a Supporting Role in 1945.
Beatrice Straight won the Oscar for Best Actress in a Supporting Role in 1976.
Cate Blanchett won the Oscar for Best Actress in a Supporting Role in 2004.
Celeste Holm won the Oscar for Best Actress in a Supporting Role in 1947.
Claire Trevor won the Oscar for Best Actress in a Supporting Role in 1948.
Cloris Leachman won the Oscar for Best Actress in a Supporting Role in 1971.
Dianne Wiest won the Oscar for Best Actress in a Supporting Role in 1986.