- John McCarthy
John McCarthy may refer to:
;Government:
*John McCarthy (ambassador) (b. 1942), Australian ambassador
*John H. McCarthy (1850–1908), U.S. Representative from New York
*John McCarthy (Nebraska) (1857–1943), Nebraska Republican politician;Science:
*John McCarthy (computer scientist) (b. 1927), American computer scientist
*John McCarthy (linguist) (b. 1953), American phonologist;Sports:
*John McCarthy (referee) , mixed martial arts referee
*Johnny McCarthy , NBA player
*Johnny McCarthy (baseball player) , Major League Baseball first baseman
*John McCarthy (footballer) , Gaelic footballer
*Two Australian rules footballers:
**John McCarthy (Australian rules footballer) , (born 1967), former player with Fitzroy and North Melbourne
**John McCarthy (Australian footballer) , (born 1989), current player with Collingwood;Other:
*John McCarthy (journalist) (b. 1956), British hostage and journalist
*John McCarthy (bishop) (1815–1893), Irish bishop
*John McCarthy, Jr. , Oscar-nominated set decorator
*John Edward McCarthy (1911–1977), American radio personalityee also
*
Jon McCarthy (born 1970), English former professional footballer
*Jack McCarthy (disambiguation)
*Joseph McCarthy
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