The 1948 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 19 May until 30 May. It was the 52nd staging of the French Championships, and the second Grand Slam tennis event of 1948. Frank Parker and Nelly Landry won the singles titles.
See main article: 1948 French Championships – Men's singles. 
Frank Parker defeated 
Jaroslav Drobný 6–4, 7–5, 5–7, 8–6
See main article: 1948 French Championships – Women's singles. 
Nelly Landry defeated Shirley Fry 6–2, 0–6, 6–0
Lennart Bergelin / Jaroslav Drobný defeated 
Harry Hopman / Frank Sedgman 8–6, 6–1, 12–10
Doris Hart / Pat Canning Todd defeated Shirley Fry / Mary Arnold Prentiss 6–4, 6–2
Pat Canning Todd / Jaroslav Drobný defeated Doris Hart / Frank Sedgman 6–3, 3–6, 6–3