Thomas Patrick "Tom" Dunn (March 15, 1900 – January 20, 1976) was a professional baseball umpire who worked in the National League from 1939 to 1946.
Dunn umpired 1146 regular season Major League Baseball (MLB) games in his 8-year career.
He also umpired in the 1944 World Series and the 1943 All-Star Game.