Benjamin Say (August 28, 1755 – April 23, 1813) was a member of the U.S. House of Representatives from Pennsylvania. Benjamin Say was born in Philadelphia, Pennsylvania, to Thomas (1709–1796) and Rebekah Atkinson Budd Say (1716–1795), He married Ann Bartram Bonsall (1759–1793) on Oct. 1, 1776, a granddaughter of naturalist John Bartram. Their son Thomas Say (1787–1835) became a pioneering entomologist. He had a grand house to the southwest of the then-borders of Philadelphia. Dubbed "The Cliffs", it overlooked the Schuylkill River near Gray's Ferry, just upriver from the Bartram estate.