Roger Hornsby and Ted Williams are the only players to win the batting triple crown twice.

Roger Hornsby with the St. Louis Cardinals in 1922 (0.401, 42 HR, 152 RBI) and 1925 (0.403, 39 HR, 143 RBI), and Ted Williams with the Boston Red Sox in 1942 (0.356, 36 HR, 137 RBI) and 1947 (0.343, 32 HR, 114 RBI).