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.