Gary Richard Wheelock (born November 29, 1951) is a former Major League Baseball pitcher for the California Angels (1977) and Seattle Mariners (1977, 1980).
After his playing career ended, he spent 26 seasons coaching in the Mariners' organization.
Wheelock attended the University of California, Irvine, where he played college baseball for the Anteaters from 1972-1974.