Milton Cogswell (December 4, 1825 – November 20, 1882) was a United States Army officer. Milton Cogswell was born in Noblesville, Indiana on December 4, 1825. He graduated from the United States Military Academy at West Point in 1849, when he was appointed brevet Second Lieutenant in the 4th United States Infantry. In 1850 he was assigned to duty on the frontier, serving with the 8th Infantry, but he was recalled and detailed as Assistant Professor of Mathematics at West Point until 1856. He died on November 20, 1882, and was buried at Arlington National Cemetery, in Arlington, Virginia.