Robert Townsend (November 25, 1753 – March 7, 1838) was a member of the Culper Ring during the American Revolution.
He operated in New York City with the aliases "Samuel Culper, Jr." and "723" and gathered information as a service to General George Washington.
He is one of the least-known operatives in the spy ring, once demanding that Abraham Woodhull ("Samuel Culper") never tell his name to anyone, not even to Washington.