The 1938 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 2 June until 11 June. It was the 43rd staging of the French Championships and the second Grand Slam tournament of the year.

Finals

Men's singles

🇺🇸 Don Budge defeated Roderich Menzel 6–3, 6–2, 6–4

Women's singles

🇫🇷 Simonne Mathieu defeated 🇫🇷 Nelly Adamson 6–0, 6–3

Men's doubles

🇫🇷 Bernard Destremau / 🇫🇷 Yvon Petra defeated 🇺🇸 Don Budge / 🇺🇸 Gene Mako 3–6, 6–3, 9–7, 6–1

Women's doubles

🇫🇷 Simonne Mathieu / 🇬🇧 Billie Yorke defeated 🇫🇷 Arlette Halff / 🇫🇷 Nelly Landry 6–3, 6–3

Mixed doubles

🇫🇷 Simonne Mathieu / Dragutin Mitić defeated 🇦🇺 Nancye Wynne Bolton / 🇫🇷 Christian Boussus 2–6, 6–3, 6–4