The 1951 French Championships (now known as the French Open) was a tennis tournament that took place on the outdoor clay courts at the Stade Roland-Garros in Paris, France. The tournament ran from 23 May until 3 June. It was the 55th staging of the French Championships, and the second Grand Slam tennis event of 1951. Jaroslav Drobný and Shirley Fry won the singles titles.
See main article: 1951 French Championships – Men's singles. 
Jaroslav Drobný defeated Eric Sturgess 6–3, 6–3, 6–3
See main article: 1951 French Championships – Women's singles. 
Shirley Fry defeated Doris Hart 6–3, 3–6, 6–3
Ken McGregor / Frank Sedgman defeated Gardnar Mulloy / Dick Savitt 6–2, 2–6, 9–7, 7–5
Shirley Fry / Doris Hart defeated Beryl Bartlett / Barbara Scofield 10–8, 6–3
Doris Hart / Frank Sedgman defeated Thelma Coyne Long / Mervyn Rose 7–5, 6–2