John Barrett or Johnny Barrett may refer to:

Clergy

• John Barrett (bishop) (1878–1946), British clergyman who held high office in the Roman Catholic Church
• John Barrett (dean of Clonmacnoise) (1929–1996), Irish Anglican priest
• John Barrett (Hebrew scholar) (1753–1821), Irish Anglican priest
• John C. A. Barrett (born 1943), Chairman of the World Methodist Council and educator

Military personnel

• John Barrett (Irish soldier) (died 1693), Irish colonel in the Williamite war
• John Barrett (Royal Navy officer) (died 1810), Irish captain in the Royal Navy
• John Cridlan Barrett (1897–1977), English recipient of the Victoria Cross

Politicians

• John Barrett (Australian politician) (1858–1928), Australian senator
• John Barrett (Massachusetts politician) (born 1947), American legislator and former mayor of North Adams
• John Barrett (Missouri politician) (1915–2000), American legislator
• John Barrett (Scottish politician) (born 1954), Scottish Liberal Democrat politician and the former Member of Parliament for Edinburgh West
• John Barrett Jr. (born 1944), Citizen Potawatomi Nation chairman

Scholars

• John Barrett (energy researcher), British energy and climate change scientist
• John Barrett (Hebrew scholar) (1753–1821), Irish Anglican priest
• John C. Barrett (born 1949), British archaeologist
• John W. Barrett (mathematician), British mathematician
• John W. Barrett (physicist), British mathematical physicist

Sportpeople

• John Barrett (American football) (1899–1966), American football player
• John Barrett (athlete) (1879–1942), Irish track and field athlete
• John Barrett (Australian footballer) (1928–2023), Australian rules footballer
• John Barrett (cricketer) (born 1946), English cricketer
• John Barrett (ice hockey) (born 1958), Canadian NHL defenceman
• John Barrett (outfielder) ( fl. 1872), American baseball outfielder
• John Barrett (tennis) (born 1931), English tennis player and commentator
• John Barrett (volleyball) (born 1962), Canadian volleyball player
• Johnny Barrett (American football) (1895–1974), American football player
• Johnny Barrett (baseball) (1915–1974), American baseball player

Others

• John Barrett (actor) (1910–1983), British actor
• John Barrett (conservationist) (1913–1999), British conservationist, author and broadcaster
• John Barrett (diplomat) (1866–1938), United States ambassador to Siam, Argentina, Panama, and Colombia
• John Barrett (salon), the brand of beauty and hair salons by hairstylist John Barrett
• John Barrett, frontman of the band Bass Drum of Death
• John F. Barrett (born 1949), CEO of Western & Southern Financial Group

See also

• Jack Barrett (disambiguation)
• John Barret (disambiguation)
• John Barrett Kerfoot (1816–1881), American bishop

This disambiguation page lists articles associated with the title John Barrett.
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