1973 French Open – Men's singles

Men's singles
1973 French Open
Champion Ilie Năstase
Runner-up Nikola Pilić
Score6–3, 6–3, 6–0
Draw128
Seeds16

Ilie Năstase defeated Nikola Pilić in the final, 6–3, 6–3, 6–0 to win the men's singles tennis title at the 1973 French Open. It was his second and last major singles title, after the 1972 US Open. Năstase did not lose a set during the tournament.

Andrés Gimeno was the defending champion, but lost in the second round to Guillermo Vilas.

This was the first major appearance for future world No. 1, six-time French Open champion, and eleven-time major champion Björn Borg; he lost in the fourth round to Adriano Panatta.