William Edward Haller (February 28, 1935 – August 20, 2022) was an American Major League Baseball umpire.
Haller officiated 3,068 regular season games in the American League in 1961 and from 1963 to 1982.
[2] Haller was the home plate umpire when Carl Yastrzemski got his 3000th major league hit on September 12, 1979.
Upon retirement, Haller served as a supervisor of American League umpires until he was fired shortly after the 1985 season ended.
On July 14, 1972, the umpiring Haller worked the plate in Tiger Stadium when his brother caught for Detroit.