Mare Nostrum is a 1926 American silent war drama film directed by Rex Ingram. It was the first production made by Ingram while in voluntary exile and stars Ingram's wife, Alice Terry. The film is set during World War I, and follows a Spanish merchant sailor who becomes involved with a German spy. It is based on the novel of the same name by Vicente Blasco Ibáñez. Long thought lost, the film has recently been re-discovered and restored.