The 1985 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 84th staging of the French Open, and the first Grand Slam tennis event of 1985.
The event was part of the 1985 Nabisco Grand Prix and 1985 Virginia Slims World Championship Series.
Mats Wilander defeated Ivan Lendl, 3–6, 6–4, 6–2, 6–2 
- It was Wilander's 4th career Grand Slam title, and his 2nd French Open title.
Chris Evert defeated Martina Navratilova, 6–3, 6–7(4-7), 7–5 
- It was Evert's 17th career Grand Slam title, and her 6th French Open title.
Mark Edmondson / Kim Warwick defeated Schlomo Glickstein / Hans Simonsson, 6–3, 6–4, 6–7, 6–3 
Martina Navratilova / Pam Shriver defeated Claudia Kohde-Kilsch / Helena Suková, 4–6, 6–2, 6–2 
Martina Navratilova / Heinz Günthardt defeated Paula Smith / Francisco González, 2–6, 6–3, 6–2 
Total prize money for the event was FF19,895,600.