| Champ: |  Gaël Monfils |
| Runner: |  Vasek Pospisil |
| Score: | 7–5, 6–3 |
| Draw: | 28 (4 / 3) |
| Seeds: | 8 |
| Type: | singles doubles |
See main article: 2020 Open Sud de France.
Jo-Wilfried Tsonga was the defending champion,[1] but chose not to participate this year.
Gaël Monfils won the title, defeating Vasek Pospisil in the final, 7–5, 6–3.
The top four seeds received a bye into the second round.