Benjamin Tallmadge (February 25, 1754 – March 7, 1835) was an American military officer and politician.
Tallmadge is best known for his service as an officer in the Continental Army during the American Revolutionary War. In this conflict he acted as leader of the Culper Ring, a celebrated network of spies in British-occupied New York. He also led a successful raid across Long Island that culminated in the Battle of Fort St. George. Following the war, Tallmadge was elected to the United States House of Representatives as a member of the Federalist Party.