Samuel Morey (born Oct. 23, 1762, Hebron, Conn., U.S.—died April 17, 1843, Fairlee, Vt.) was an American inventor.
With support from Robert R. Livingston, Morey experimented with steamboats in the 1790s; though none was commercially successful, he later claimed that Robert Fulton had stolen his ideas. In 1826 he received the first U.S. patent for an internal-combustion engine. His many other patents included his American Water Burner (1818), a precursor of the water-gas process.