Academy Award untuk Aktor Pendukung Terbaik
Pemenang & nominasi > 1970s

| Tahun | Aktor | Peran | Film | Ref>  |
| --- | --- | --- | --- | --- |
| 1970  (43rd)  | Mills John Mills  | Michael | Ryan's Daughter |  |
| 1970  (43rd)  | Castellano Richard S. Castellano | Vecchio Frank Vecchio | Lovers and Other Strangers |  |
| 1970  (43rd)  | George Chief Dan George | Old Lodge Skins | Little Big Man |  |
| 1970  (43rd)  | Hackman Gene Hackman | Garrison Gene Garrison | I Never Sang for My Father |  |
| 1970  (43rd)  | Marley John Marley | Cavalleri Phil Cavalleri | Love Story |  |
| 1971  (44th)  | Johnson Ben Johnson  | Sam the Lion | Last The Last Picture Show |  |
| 1971  (44th)  | Bridges Jeff Bridges | Jackson Duane Jackson | Last The Last Picture Show |  |
| 1971  (44th)  | Frey Leonard Frey | Kamzoil Motel Kamzoil | Fiddler on the Roof |  |
| 1971  (44th)  | Jaeckel Richard Jaeckel | Stamper Joe Ben Stamper | Sometimes a Great Notion |  |
| 1971  (44th)  | Scheider Roy Scheider | Russo Buddy "Cloudy" Russo | French The French Connection |  |
| 1972  (45th)  | Grey Joel Grey  | The Master of Ceremonies | Cabaret |  |
| 1972  (45th)  | Albert Eddie Albert | Corcoran Mr. Corcoran | Heartbreak The Heartbreak Kid |  |
| 1972  (45th)  | Caan James Caan | Corleone Santino "Sonny" Corleone | Godfather1 The Godfather |  |
| 1972  (45th)  | Duvall Robert Duvall | Hagen Tom Hagen | Godfather1 The Godfather |  |
| 1972  (45th)  | Pacino Al Pacino | Corleone Michael Corleone | Godfather1 The Godfather |  |
| 1973  (46th)  | Houseman John Houseman  | Kingsfield Charles W. Kingsfield Jr. | Paper The Paper Chase |  |
| 1973  (46th)  | Gardenia Vincent Gardenia | Schnell Dutch Schnell | Bang the Drum Slowly |  |
| 1973  (46th)  | Gilford Jack Gilford | Greene Phil Greene | Save the Tiger |  |
| 1973  (46th)  | Miller Jason Miller | Karras Father Damien Karras | Exorcist The Exorcist |  |
| 1973  (46th)  | Quaid Randy Quaid | Meadows Larry Meadows | Last The Last Detail |  |
| 1974  (47th)  | De Niro Robert De Niro  | Corleone Vito Corleone | Godfather2 The Godfather Part II |  |
| 1974  (47th)  | Astaire Fred Astaire | Claiborne Harlee Claiborne | Towering The Towering Inferno |  |
| 1974  (47th)  | Bridges Jeff Bridges | Lightfoot | Thunderbolt and Lightfoot |  |
| 1974  (47th)  | Gazzo Michael V. Gazzo | Pentangeli Frank Pentangeli | Godfather2 The Godfather Part II |  |
| 1974  (47th)  | Strasberg Lee Strasberg | Roth Hyman Roth | Godfather2 The Godfather Part II |  |
| 1975  (48th)  | Burns George Burns  | Lewis Al Lewis | Sunshine The Sunshine Boys |  |
| 1975  (48th)  | Dourif Brad Dourif | Bibbit Billy Bibbit | One Flew Over the Cuckoo's Nest |  |
| 1975  (48th)  | Meredith Burgess Meredith | Greener Harry Greener | Day The Day of the Locust |  |
| 1975  (48th)  | Sarandon Chris Sarandon | Shermer Leon Shermer | Dog Day Afternoon |  |
| 1975  (48th)  | Warden Jack Warden | Karpf Lester Karpf | Shampoo |  |
| 1976  (49th)  | Robards Jason Robards  | Bradlee Ben Bradlee | All the President's Men |  |
| 1976  (49th)  | Beatty Ned Beatty | Jensen Arthur Jensen | Network |  |
| 1976  (49th)  | Meredith Burgess Meredith | Goldmill Mickey Goldmill | Rocky |  |
| 1976  (49th)  | Olivier Laurence Olivier | Szell Dr. Christian Szell | Marathon Man |  |
| 1976  (49th)  | Young Burt Young | Pennino Paulie Pennino | Rocky |  |
| 1977  (50th)  | Robards Jason Robards  | Hammett Dashiell Hammett | Julia |  |
| 1977  (50th)  | Baryshnikov Mikhail Baryshnikov | Kopeikine Yuri Kopeikine | Turning The Turning Point |  |
| 1977  (50th)  | Firth Peter Firth | Strang Alan Strang | Equus |  |
| 1977  (50th)  | Guinness Alec Guinness | Kenobi Obi-Wan Kenobi | Star Wars |  |
| 1977  (50th)  | Schell Maximilian Schell | Johann | Julia |  |
| 1978  (51st)  | Walken Christopher Walken  | Chevotarevich Nikanor "Nick" Chevotarevich | Deer The Deer Hunter |  |
| 1978  (51st)  | Dern Bruce Dern | Hyde Captain Bob Hyde | Coming Home |  |
| 1978  (51st)  | Farnsworth Richard Farnsworth | Dodger | Comes a Horseman |  |
| 1978  (51st)  | Hurt John Hurt | Max | Midnight Express |  |
| 1978  (51st)  | Warden Jack Warden | Corkle Max Corkle | Heaven Can Wait |  |
| 1979  (52nd)  | Douglas Melvyn Douglas  | Rand Benjamin Rand | Being There |  |
| 1979  (52nd)  | Duvall Robert Duvall | Kilgore Lt. Col. Bill Kilgore | Apocalypse Now |  |
| 1979  (52nd)  | Forrest Frederic Forrest | Dyer Houston Dyer | Rose The Rose |  |
| 1979  (52nd)  | Henry Justin Henry | Kramer Billy Kramer | Kramer vs. Kramer |  |
| 1979  (52nd)  | Rooney Mickey Rooney | Dailey Henry Dailey | Black The Black Stallion |  |