Samuel Cranston (1659–1727) was a governor of the Colony of Rhode Island and Providence Plantations during the first quarter of the 18th century. He held office from 1698 to 1727, being elected to office 30 times (twice in 1698), and served as governor longer than any other individual in the history of both the colony and the state of Rhode Island. The son of former Rhode Island Governor John Cranston, he was born in Newport and lived there his entire life. Going to sea as a young man, he was captured by pirates, and held captive for several years before returning to his family.