John McGuire is the name of:
Entertainment John McGuire (actor) (1910–1980), American actor John McGuire (businessman), Irish businessman and television presenter John McGuire (composer) (born 1942), American composer John J. McGuire (1917–1981), American author of science fiction John Allen McGuire (born 1985), guitarist for rock band July for Kings
Politics John A. McGuire (1906–1976), U.S. Representative from Connecticut's 3rd district John McGuire (Virginia politician) (born 1968), U.S. Representative from Virginia's 5th district Jack McGuire (1933–2020), Illinois politician
Sports Johnny McGuire (1893–1962), Scottish-American soccer player John McGuire (footballer) (1902–?), English footballer John McGuire (sportsman) (born 1954), Australian rules football player and cricketer
See also John Maguire (disambiguation)