Lightship may refer to:
Lightvessel, a moored ship that has light beacons mounted as navigational aids The Lightship, a 1985 American drama film directed by Jerzy Skolimowski The Lightship (novel), by Siegfried Lenz on which the film was based Lightcraft, a space- or air-vehicle driven by laser propulsion Light displacement, a displacement figure that measures a ship complete in all respects, but without consumables, stores, cargo, crew, and effects Lightships, an alias of Gerard Love of Teenage Fanclub a spacecraft which uses a solar sail for propulsion Lightship RV, an American company that designs and manufactures battery-electric travel trailers a type of blimp operated by The Lightship Group, a subsidiary of the American Blimp Corporation
See also List of lightships of the United States Lightvessels in the United Kingdom