Best Actor in a Supporting Role

(1927-28) - N/A*
(1929) - N/A*
(1930) - N/A*
(1931) - N/A*
(1932) - N/A*
(1933) - N/A*
(1934) - N/A*
(1935) - N/A*
(1936) - Walter Brennan, Come and Get It
(1937) - Joseph Schildkraut, The Life of Emile Zola
(1938) - Walter Brennan, Kentucky
(1939) - Thomas Mitchell, Stagecoach
(1940) - Walter Brennan, The Westerner
(1941) - Donald Crisp, How Green Was My Valley
(1942) - Van Heflin, Johnny Eager
(1943) - Charles Coburn, The More the Merrier
(1944) - Barry Fitzgerald, Going My Way
(1945) - James Dunn, A Tree Grows in Brooklyn
(1946) - Harold Russell, The Best Years of Our Lives
(1947) - Edmund Gwenn, Miracle on 34th Street
(1948) - Walter Huston, The Treasure of the Sierra Madre     
(1949) - Dean Jagger, Twelve O'Clock High
(1950) - George Sanders, All About Eve
(1951) - Karl Malden, A Streetcar Named Desire
(1952) - Anthony Quinn, Viva Zapata!
(1953) - Frank Sinatra, From Here to Eternity
(1954) - Edmond O'Brien, The Barefoot Contessa
(1955) - Jack Lemmon, Mister Roberts
(1956) - Anthony Quinn, Lust for Life
(1957) - Red Buttons, Sayonara
(1958) - Burl Ives, The Big Country
(1959) - Hugh Griffith, Ben-Hur
(1960) - Peter Ustinov, Spartacus
(1961) - George Chakiris, West Side Story
(1962) - Ed Begley, Sweet Bird of Youth
(1963) - Melvyn Douglas, Hud
(1964) - Peter Ustinov, Topkapi
(1965) - Martin Balsam, A Thousand Clowns
(1966) - Walter Matthau, The Fortune Cookie
(1967) - George Kennedy, Cool Hand Luke
(1968) - Jack Albertson, The Subject Was Roses
(1969) - Gig Young, They Shoot Horses, Don't They?
(1970) - John Mills, Ryan's Daughter
(1971) - Ben Johnson, The Last Picture Show
(1972) - Joel Grey, Cabaret
(1973) - John Houseman, The Paper Chase
(1974) - Robert De Niro, The Godfather Part II
(1975) - George Burns, The Sunshine Boys
(1976) - Jason Robards, All the President's Men
(1977) - Jason Robards, Julia

(1978) - Christopher Walken, The Deer Hunter
(1979) - Melvyn Douglas, Being There
(1980) - Timothy Hutton, Oridnary People
(1981) - John Gielgud, Arthur
(1982) - Louis Gossett, Jr., An Officer and a Gentleman
(1983) - Jack Nicholson, Terms of Endearment
(1984) - Haing S. Ngor, The Killing Fields
(1985) - Don Ameche, Cocoon
(1986) - Michael Caine, Hannah and Her Sisters
(1987) - Sean Connery, The Untouchables
(1988) - Kevin Kline, A Fish Called Wanda
(1989) - Denzel Washington, Glory
(1990) - Joe Pesci, Good Fellas
(1991) - Jack Palance, City Slickers
(1992) - Gene Hackman, Unforgiven
(1993) - Tommy Lee Jones, The Fugitive
(1994) - Martin Landau, Ed Wood
(1995) - Kevin Spacey, The Usual Suspects
(1996) - Cuba Gooding Jr., Jerry Maguire
(1997) - Robin Williams, Good Will Hunting
(1998) - James Coburn, Affliction
(1999) - Michael Caine, The Cider House Rules
(2000) - Benicio Del Toro, Traffic
(2001) - Jim Broadbent, Iris
(2002) - Chris Cooper, Adaptation
(2003) - Tim Robbins, Mystic River
(2004) - Morgan Freeman, Million Dollar Baby
(2005) - George Clooney, Syriana
(2006) - Alan Arkin, Little Miss Sunshine
(2007) - Javier Bardem, No Country for Old Men
(2008) - Heath Ledger, The Dark knight


* Supporting Oscars were not handed out untill 1936.

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