John Gannon
# John Gannon

John Gannon may refer to:

* John Gannon (Australian politician) (1830–1887), member of the New South Wales Legislative Assembly
* John Gannon (footballer) (born 1966), English footballer
* John D. Gannon (1948–1999), American computer scientist
* John A. Gannon (1923–1997), American labor union leader
* Sam Gannon (born 1947), real name John Gannon, Australian cricketer
* John Mark Gannon (1877–1968), American clergyman of the Roman Catholic Church
* John Gannon (American politician), Idaho State Representative
* John Gannon (Vermont politician), Vermont State Representative
