Irvine Stephens Bulloch (25 June 1842 – 14 July 1898) was an officer in the Confederate Navy and the youngest officer on the famed warship CSS Alabama. He fired its last shot before it was sunk off the coast of France at the end of the American Civil War. He was the half-brother of James Bulloch and a full brother of Martha Bulloch Roosevelt. Martha was the mother of future U.S. President Theodore Roosevelt and the grandmother of Eleanor Roosevelt.