John Gleeson may refer to:

• John Gleeson (cricketer) (1938-2016), Australian cricketer
• John Gleeson (hurler) (born 1941), former Irish hurler
• John Gleeson (judge) (born 1953), American judge
• John Gleeson (rugby league) (born 1938), Australian rugby league footballer
• Johnny Tom Gleeson (1853–1924), Irish poet and songwriter

• Nearest neighbour function
• Nearest point problem
• Nearest prototype classifier
• Nearest referent
• Nearest star to our planet
• Near-exact
• Near-exact division
• Near-exact division procedure
• Near & far field
• Near-Field Communication
• Near field communications
• Near-field communications
• Neargal
• Neargyractis alemundalis
• Neargyractis caesoalis
• Neargyractis fulvicinctalis
• Neargyractis holocycla
• Neargyractis moniligeralis
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• Neargyractis serapionalis
• Neargyractis slossonalis
• Neargyria argyraspis
• Neargyria persimilis
• Neargyrioides aglaopis
• Near hanging