John Richard Shulock (born April 29, 1947) is a former professional baseball umpire who worked in the American League from 1979 to 1999 and throughout Major League Baseball between 2000 and 2002. Shulock wore number 29 when the AL adopted them for its umpires in 1980, and retained the number when the NL and AL umpire staffs merged in 2000. Shulock umpired 3,050 major league games in his 24-year career. He umpired in two World Series (1985 and 1992), two All-Star Games (1983 and 1994), four American League Championship Series (1988, 1993, 1998 and 2001), and two American League Division Series (1996 and 1999).