John Allen (December 30, 1771 – January 22, 1813) was a United States politician and army officer who was killed in the War of 1812. Allen was born in Rockbridge County, Virginia, and moved with his father to Kentucky in 1779. He went to school in Bardstown, Kentucky and studied law in Staunton, Virginia. He then returned to Kentucky to law practice in Shelbyville. He was elected to the Kentucky Senate in 1807, and served until his death. Allen County, Kentucky was named for him in 1815. He is also honored by Allen County, Ohio, and Allen County, Indiana.