Joseph Leonard Tillinghast (May 18, 1790 – December 30, 1844) was a U.S. Representative from Rhode Island, cousin of Thomas Tillinghast. Born in Taunton, Massachusetts, Tillinghast moved to Rhode Island and pursued classical studies.Published the Providence Gazette in 1809.He studied law.He was admitted to the bar in 1811 and began practice in Providence, Rhode Island.He served as member of the State house of representatives 1826–1833, serving as speaker 1829–1832. He was a great great grandson of Rev. Pardon Tillinghast (1622–1718).