The 1939 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 8 June until 17 June.

It was the 44th staging of the French Championships and the last one held before a six-year hiatus due to World War II.

It was the second of four Grand Slam tennis events of the year.

Don McNeill defeated Bobby Riggs 7–5, 6–0, 6–3 Simonne Mathieu defeated Jadwiga Jędrzejowska 6–3, 8–6 Don McNeill / Charles Harris defeated Jean Borotra / Jacques Brugnon 4–6, 6–4, 6–0, 2–6, 10–8 Simonne Mathieu / Jadwiga Jędrzejowska defeated Alice Florian / Hella Kovac 7–5, 7–5 Sarah Palfrey / Elwood Cooke defeated Simonne Mathieu / Franjo Kukuljević 4–6, 6–1, 7–5