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.

Jaroslav Drobný defeated Eric Sturgess 6–3, 6–3, 6–3 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