Harry Hunter Wendelstedt, Jr. (July 27, 1938 – March 9, 2012) was an umpire in Major League Baseball who worked in the National League from 1966 to 1998. He was born in Baltimore, Maryland. He umpired in the World Series in 1973, 1980, 1986, 1991 and 1995, serving as crew chief in 1980 and 1995. He also officiated in seven National League Championship Series (1970, 1972, 1977, 1981, 1982, 1988, 1990) and four All-Star games (1968, 1976, 1983, 1992), calling balls and strikes in 1976. He umpired in the National League Division Series in 1995, 1996 and 1997. He wore uniform number 21.