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 95th staging of the French Open, and the second Grand Slam tennis event of 1991.

Jim Courier defeated Andre Agassi[a], 3–6, 6–4, 2–6, 6–1, 6–4 Monica Seles defeated Arantxa Sánchez Vicario, 6–3, 6–4 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