Giải Oscar cho nam diễn viên chính xuất sắc nhất
Danh sách cụ thể > Thập niên 1970

| Năm | Diễn viên | Phim | Vai diễn | Chú thích |
| --- | --- | --- | --- | --- |
| 1970  (43)  | George C. Scott § | Patton | Tướng George S. Patton Jr. |  |
| 1970  (43)  | Melvyn Douglas | I Never Sang for My Father | Tom Garrison |  |
| 1970  (43)  | James Earl Jones | The Great White Hope | Jack Jefferson |  |
| 1970  (43)  | Jack Nicholson | Five Easy Pieces | Robert Eroica Dupea |  |
| 1970  (43)  | Ryan O'Neal | Love Story | Oliver Barrett IV |  |
| 1971  (44)  | Gene Hackman ‡ | The French Connection | Thám tử Jimmy "Popeye" Doyle |  |
| 1971  (44)  | Peter Finch | Sunday Bloody Sunday | Dr. Daniel Hirsh |  |
| 1971  (44)  | Walter Matthau | Kotch | Joseph P. Kotcher |  |
| 1971  (44)  | George C. Scott | The Hospital | Dr. Herbert Bock |  |
| 1971  (44)  | Topol | Fiddler on the Roof | Tevye |  |
| 1972  (45)  | Marlon Brando § | Bố già | Vito Corleone |  |
| 1972  (45)  | Michael Caine | Sleuth | Milo Tindle |  |
| 1972  (45)  | Laurence Olivier | Sleuth | Andrew Wyke |  |
| 1972  (45)  | Peter O'Toole | The Ruling Class | Jack Gurney, 14th Earl of Gurney |  |
| 1972  (45)  | Paul Winfield | Sounder | Nathan Lee Morgan |  |
| 1973  (46)  | Jack Lemmon ‡ | Save the Tiger | Harry Stoner |  |
| 1973  (46)  | Marlon Brando | Last Tango in Paris | Paul |  |
| 1973  (46)  | Jack Nicholson | The Last Detail | Signalman First Class Billy L. "Badass" Buddusky |  |
| 1973  (46)  | Al Pacino | Serpico | Frank Serpico |  |
| 1973  (46)  | Robert Redford | The Sting | Johnny "Kelly" Hooker |  |
| 1974  (47)  | Art Carney ‡ | Harry and Tonto | Harry Coombes |  |
| 1974  (47)  | Albert Finney | Murder on the Orient Express | Hercule Poirot |  |
| 1974  (47)  | Dustin Hoffman | Lenny | Lenny Bruce |  |
| 1974  (47)  | Jack Nicholson | Chinatown | J. J. "Jake" Gittes |  |
| 1974  (47)  | Al Pacino | The Godfather Part II | Michael Corleone |  |
| 1975  (48)  | Jack Nicholson ‡ | Bay trên tổ chim cúc cu | Randle Patrick "Mac" McMurphy |  |
| 1975  (48)  | Walter Matthau | The Sunshine Boys | Willy Clark |  |
| 1975  (48)  | Al Pacino | Dog Day Afternoon | Sonny Wortzik |  |
| 1975  (48)  | Maximilian Schell | The Man in the Glass Booth | Arthur Goldman |  |
| 1975  (48)  | James Whitmore | Give 'em Hell, Harry! | Harry S. Truman |  |
| 1976  (49)  | Peter Finch ^ | Network | Howard Beale |  |
| 1976  (49)  | Robert De Niro | Taxi Driver | Travis Bickle |  |
| 1976  (49)  | Giancarlo Giannini | Seven Beauties | Pasqualino Frafuso |  |
| 1976  (49)  | William Holden | Network | Max Schumacher |  |
| 1976  (49)  | Sylvester Stallone | Rocky | Rocky Balboa |  |
| 1977  (50)  | Richard Dreyfuss ‡ | The Goodbye Girl | Elliot Garfield |  |
| 1977  (50)  | Woody Allen | Annie Hall | Alvy Singer |  |
| 1977  (50)  | Richard Burton | Equus | Martin Dysart |  |
| 1977  (50)  | Marcello Mastroianni | A Special Day | Gabriele |  |
| 1977  (50)  | John Travolta | Saturday Night Fever | Anthony "Tony" Manero |  |
| 1978  (51)  | Jon Voight ‡ | Coming Home | Luke Martin |  |
| 1978  (51)  | Warren Beatty | Heaven Can Wait | Joe Pendleton |  |
| 1978  (51)  | Gary Busey | The Buddy Holly Story | Buddy Holly |  |
| 1978  (51)  | Robert De Niro | The Deer Hunter | Michael Vronsky |  |
| 1978  (51)  | Laurence Olivier | The Boys from Brazil | Ezra Lieberman |  |
| 1979  (52)  | Dustin Hoffman ‡ | Kramer vs. Kramer | Ted Kramer |  |
| 1979  (52)  | Jack Lemmon | The China Syndrome | Jack Godell |  |
| 1979  (52)  | Al Pacino | ...And Justice for All | Arthur Kirkland |  |
| 1979  (52)  | Roy Scheider | All That Jazz | Joe Gideon |  |
| 1979  (52)  | Peter Sellers | Being There | Chance the Gardener, aka Chauncey Gardiner |  |