Robert Bennie Cranston (January 14, 1791 – January 27, 1873) was a U.S. Representative from Rhode Island, brother of Henry Young Cranston.
Born in Newport, Rhode Island, Cranston attended the public schools.
He served as presidential elector on the Republican ticket in 1864.
He died in Newport, Rhode Island, January 27, 1873.
This article incorporates public domain material from the Biographical Directory of the United States Congress