Samuel Dinsmoor (July 1, 1766 – March 15, 1835) was an American teacher, lawyer and politician from Keene, New Hampshire. Born in 1766 in Windham, New Hampshire. Dinsmoor represented New Hampshire in the U.S. House during the Twelfth Congress. Dinsmoor later served as Governor. He died in 1835 in Keene, New Hampshire, and is buried there at the Washington Street Cemetery.