1977 French Open – Mixed doubles
| Mixed doubles | |
|---|---|
| 1977 French Open | |
| 1976 Champion | Kim Warwick Ilana Kloss |
| Champion | John McEnroe Mary Carillo |
| Runner-up | Iván Molina Florența Mihai |
| Score | 7–6, 6–4 |
John McEnroe and Mary Carillo defeated Iván Molina and Florența Mihai in the final, 7–6, 6–4 to win the mixed doubles tennis title at the 1977 French Open.
Kim Warwick and Ilana Kloss were the reigning champions, but did not compete this year.