The Coffin Ship is a 1911 American silent film, a nautical melodrama produced by the Thanhouser Company of New Rochelle, New York. Featuring William Garwood in a starring role, the identities of the motion picture's other two principal cast members remain undetermined.

A full print of the film, one distributed in Europe in 1911 with German intertitles and titled Im Meere Verloren ("Lost in the Sea"), is preserved in the collection of the EYE Film Institute in the Netherlands.