John Andrew "Rocky" Roe (born August 16, 1950) is a former umpire in Major League Baseball who worked in the American League from 1979 to 1999 and in both leagues in 2000 and 2001. He officiated in the 1990 and 1999 World Series, as well as the 1984 and 1994 All-Star Games. He also worked three American League Championship Series (1986, 1991, 1996) and four Division Series (1995, 1997, 1999, 2000). Roe wore uniform number 27 throughout his career.