David Hillhouse Buel (September 19, 1839 – July 22, 1870) was a United States Army officer who rose to the rank of brevet major and lieutenant colonel in the Union Army during the American Civil War. Born in Michigan, he attended the United States Military Academy, and eventually became Chief of Ordnance of the Army of the Tennessee and fought in the First Battle of Bull Run. He was killed by a soldier at Fort Leavenworth, whom he had imprisoned for desertion.