John McCarthy

John McCarthy may refer to:

Government

 * John George MacCarthy (1829–1892), Member of Parliament for Mallow constituency, 1874–1880
 * John McCarthy (Irish politician) (1862–1893), Member of Parliament for the Mid Tipperary constituency, 1892–1893
 * John H. McCarthy (1850–1908), U.S. Representative from New York
 * John McCarthy (Nebraska politician) (1857–1943), Nebraska Republican politician
 * John F. McCarthy (1924–1981), California Republican senator
 * John J. McCarthy (New Jersey politician) (1927–2001), New Jersey General Assembly member
 * John V. McCarthy (c. 1932–1987), member of the Ohio House of Representatives
 * John Thomas McCarthy (born 1939), U.S. ambassador
 * John McCarthy (Australian diplomat) (born 1942), Australian ambassador to Vietnam, Mexico, Thailand, the United States, Indonesia, India and Japan
 * John A. McCarthy (born 1947), Australian ambassador to the Holy See (2012–2016)
 * John Keith McCarthy (1905–1976), Australian public servant in the Territory of Papua and New Guinea

Humanity and science

 * John McCarthy (computer scientist) (1927–2011), American computer scientist
 * John McCarthy (linguist) (born 1953), American phonologist
 * John D. McCarthy (born 1940), American sociologist
 * John McCarthy (mathematician) (born 1964), mathematician
 * John F. McCarthy Jr., American scientist and engineer

Sports

 * John McCarthy (American football) (1916–1998), American football player
 * John McCarthy (referee) (born 1962), mixed martial arts referee
 * Johnny McCarthy (1934–2020), American basketball player and coach
 * Johnny McCarthy (baseball) (1910–1973), American baseball player
 * John McCarthy (Gaelic footballer) (born 1955), former Dublin Gaelic footballer
 * John McCarthy (ice hockey) (born 1986), American ice hockey player and coach
 * John McCarthy (athlete), Paralympic athlete from Ireland
 * John McCarthy (soccer) (born 1992), American soccer player
 * John McCarthy (Australian rules footballer, born 1967), former player with Fitzroy and North Melbourne
 * John McCarthy (Australian rules footballer, born 1989) (1989–2012), Port Adelaide and Collingwood player
 * J. J. McCarthy (Jonathan James McCarthy, born 2003), American football player

Religious states

 * John E. McCarthy (1930–2018), Roman Catholic bishop of the Diocese of Austin
 * John McCarthy (Irish bishop) (1815–1893), bishop of Cloyne
 * John McCarthy (Australian bishop), bishop of Sandhurst in Victoria, Australia
 * John McCarthy (priest) (born 1938), Dean of Clogher, 1989–1994
 * John Joseph McCarthy (1896–1983), Irish-born bishop to Nairobi, Kenya

Musicians

 * John McCarthy (guitarist), guitarist
 * John McCarthy (composer) (born 1961), Canadian composer
 * John McCarthy (conductor) (1916–2009), conductor of choral music

Others

 * John McCarthy (journalist) (born 1956), British hostage and journalist
 * John McCarthy Jr. (1912–1994), Oscar-nominated set decorator
 * John Edward McCarthy (1911–1977), American radio personality
 * John P. McCarthy (1884–1962), American director and screenwriter