Bob Guelker (June 26, 1923 – February 22, 1986) was an American soccer coach and administrator. He coached 24 years at the collegiate level, including coaching St. Louis University to five championships (1959, 1960, 1962, 1963, 1965). He coached the U.S. teams at both the 1971 Pan American Games and the 1972 Summer Olympics. He was president of the United States Soccer Football Association from 1967 to 1969 and is a member of the National Soccer Hall of Fame.