Julius H. Stahel-Számwald (November 5, 1827 – December 4, 1912) was a Hungarian soldier who emigrated to the United States and became a Union general in the American Civil War. After the war, he served as a U.S. diplomat, a mining engineer, and a life insurance company executive. He received the Medal of Honor for gallantry in action at the Battle of Piedmont in 1864.