Actor Award for Outstanding Performance by a Male Actor in a Supporting Role
The Actor Award for Outstanding Performance by a Male Actor in a Supporting Role in a Motion Picture is an award presented annually by the Screen Actors Guild. It has been presented since the 1st Screen Actors Guild Awards in 1995 to a male actor who has delivered an outstanding performance in a supporting role in a film released that year.
The award has been presented 30 times, and 29 actors have won the award. Martin Landau was the award's first winner for Ed Wood. The most recent winner is Kieran Culkin who won for his performance in A Real Pain. Mahershala Ali is the only actor to have won the award twice. The record for the most nominations is shared by Chris Cooper, Willem Dafoe, and Jared Leto with three nominations each.
Winners and nominees
| Indicates the winner | |
| Indicates a posthumous winner | |
| Indicates a posthumous nominee | |
| Indicates the Academy Award winner |
Multiple winners
;Two awards- Mahershala Ali, Green Book )
Multiple nominees
Note: Winners are indicated in bold type.;Two nominations
- Mahershala Ali, Green Book )
- Alan Arkin, Argo )
- Christian Bale, The Big Short )
- Javier Bardem, Skyfall )
- Kenneth Branagh, My Week With Marilyn )
- Jeff Bridges, Hell or High Water )
- Don Cheadle, Crash )
- Robert De Niro, Killers of the Flower Moon )
- Benicio del Toro, One Battle After Another )
- Robert Downey Jr., Oppenheimer )
- Robert Duvall, The Judge )
- Jamie Foxx, Just Mercy )
- Woody Harrelson, Three Billboards Outside Ebbing, Missouri )
- Ed Harris, The Hours )
- Ethan Hawke, Boyhood )
- Philip Seymour Hoffman, The Master )
- Tommy Lee Jones, Lincoln )
- Edward Norton, A Complete Unknown )
- Dev Patel, Lion )
- Christopher Plummer, Beginners )
- Mark Ruffalo, Foxcatcher )
- Geoffrey Rush, The King's Speech )
- Chris Cooper, Adaptation., Seabiscuit )
- Willem Dafoe, The Florida Project, Poor Things )
- Jared Leto, The Little Things, House of Gucci )