Joseph Anthony Bach (January 17, 1901 – October 24, 1966) was one of Notre Dame's famed "Seven Mules" and later the head coach for the NFL's Pittsburgh Pirates (1935–36) and later the renamed Pittsburgh Steelers (1952–53). As a senior at Notre Dame, he was a lineman on the 1924 national title team — the first Irish team to win a championship, and had a pivotal role in Notre Dame's first Rose Bowl trip in January 1925. Famous for the Four Horsemen backfield, the line that blocked for them was known as "The Seven Mules."