Samuel Gilbert Hathaway (July 18, 1780 - May 2, 1867) was a U.S. Representative from New York. Born in Freetown, Massachusetts, Hathaway attended the public schools. He worked at various occupations and made one sea voyage. He moved to Chenango County, New York, in 1803 and two years later to Cincinnatus, Cortland County, and engaged in agricultural pursuits. He was in the Justice of the Peace 1810-1858. He served as member of the State assembly in 1814 and 1818. He moved to Solon, New York, in 1819. He served in the State senate in 1823. Major general in the New York Militia 1823-1858.