The Best Supporting Actress category was established by the Academy of Motion Picture Arts and Sciences (AMPAS) in 1936.
Below please find my list of the weakest (least deserving) performances, honored with the Best Supporting Actress Oscar.
I have arranged them chronologically.
Katina Paxinou, For Whom the Bell Tolls, 1943
Miyoshi Umeki, Sayonara, 1957
Wendy Hiller, Separate Tables, 1958
Margaret Rutherford, The V.I.P.s, 1963
Goldie Hawn, Cactus Flower, 1969
Helen Hayes, Airport, 1970
Olympia Dukakis, Moonstruck, 1987
Mercedes Ruehl, The Fisher King, 1991
Marisa Tomei, My Cousin Vinny, 1992
Catherine Zeta-Jones, Chicago, 2002
Rene Zellweger, Cold Mountain, 2003
Anna Hathaway, Les Miserables, 2012
