| Champ: |  Arthur Ashe |
| Runner: | Marty Riessen |
| Score: | 7–6, 6–4, 6–3 |
| Draw: | 32 |
| Seeds: | 8 |
| Type: | singles doubles |
| After Year: | 1972 |
The 1970 Paris Open – Singles was an event of the 1970 Paris Open men's tennis tournament that was played at the Palais Omnisports in Paris, France from 9 November until 15 November 1970. The draw comprised 32 players and eight were seeded. Third-seeded Arthur Ashe won the singles title, defeating unseeded Marty Riessen in the final, 7–6, 6–4, 6–3.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
Rod Laver (first round) Ken Rosewall (quarterfinals) Arthur Ashe (champion) Cliff Richey (second round)
Andrés Gimeno (second round) Roy Emerson (second round) Pancho Gonzales (quarterfinals)