See main article: 1979 French Open.
Defending champion Björn Borg defeated Víctor Pecci Sr. in the final, 6–3, 6–1, 6–7(6–8), 6–4 to win the men's singles tennis title at the 1979 French Open. It was his fourth French Open title and seventh major title overall.
The seeded players are listed below. Björn Borg is the champion; others show the round in which they were eliminated.