John McCarthy (disambiguation)
John McCarthy is the name of the following people:
- John McCarthy (1927–2011), American computer scientist
- John McCarthy Jr. (1912-1994), American production designer
- John McCarthy ( American football player , 1916) (1916–1998) American football player
- John McCarthy (composer) (born 1961), Canadian film composer
- John McCarthy (American football player, 1967) (born 1967), Australian Australian football player
- John McCarthy (athlete) (born 1974), Irish athlete
- John McCarthy (ice hockey player) (born 1986), American ice hockey player
- John McCarthy (American football player, 1989) (1989–2012), Australian Australian football player
- John D. McCarthy (* 1940), American sociologist and economist
- John Edward McCarthy (1930–2018), American clergyman, Bishop of Austin
- John H. McCarthy (1850–1908), American politician
- John J. McCarthy ( John Joseph McCarthy ; * 1953), American linguist
- John Jay McCarthy (1857–1943), American politician
- John Joseph McCarthy , Irish clergyman, Archbishop of Nairobi