John Francis "Red" Flaherty (April 25, 1917 – April 1, 1999) was a professional baseball umpire who worked in the American League from 1953 to 1973. Flaherty umpired 3,208 major league games in his 21-year career. He umpired in four World Series (1955, 1958, 1965, and 1970), two League Championship Series (1969 and 1972) and three All-Star Games (1956, 1961 and 1969). In 1936, Flaherty played for Falmouth in the Cape Cod Baseball League.