The 1991 French Open was a tennis tournament that took place on the outdoor clay courts at the Stade Roland Garros in Paris, France. The tournament was held from 27 May until 9 June. It was the 90th staging of the French Open, and the second Grand Slam tennis event of 1991.
Jim Courier defeated Andre Agassi, 3–6, 6–4, 2–6, 6–1, 6–4
- It was Courier's third title of the year, and his fourth overall. It was his first career Grand Slam title.
Monica Seles defeated Arantxa Sánchez Vicario, 6–3, 6–4
- It was Seles's 4th title of the year, and her 14th overall. It was her 3rd career Grand Slam title, and her 2nd French Open title.
John Fitzgerald / Anders Järryd defeated Rick Leach / Jim Pugh, 6–0, 7–6
Gigi Fernández / Jana Novotná defeated Larisa Savchenko Neiland / Natalia Zvereva, 6–4, 6–0
Helena Suková / Cyril Suk defeated Caroline Vis / Paul Haarhuis, 3–6, 6–4, 6–1
Andrei Medvedev defeated Thomas Enqvist, 6–4, 7–6
Anna Smashnova defeated Inés Gorrochategui, 2–6, 7–5, 6–1
Thomas Enqvist / Magnus Martinelle defeated Julian Knowle / Johannes Unterberger, 6–1, 6–3
Eva Bes / Inés Gorrochategui defeated Zdeňka Málková / Eva Martincová, 6–1, 6–3