La Piscine (The Swimming Pool) is a 1969 psychological thriller film directed by Jacques Deray, starring Alain Delon, Romy Schneider, Maurice Ronet, and Jane Birkin.

Set in summertime on the Côte d'Azur, it is a drama of sexual jealousy and possessiveness. Both French and English-language versions of the film were made, with the actors filmed speaking English for the international release, which was unusual at a time when movies were always either dubbed or subtitled. The 114-minute international release, shorter than the French version, also had slightly different editing.