John Mann may refer to:
- John Mann (actor), British actor
- John Mann (Australian politician) (1869–1939), Australian politician
- John Pelham Mann (1919–2002), English cricketer and British Army officer
- John Mann (cricketer, born 1983), former English cricketer
- John Mann (comedian) (born 1961), British comedian, writer and columnist
- John Mann (politician) (born 1960), UK Labour Party politician, MP for Bassetlaw
- John Mann (musician) (born 1962), Canadian rock musician and actor
- John Mann (water polo), American water polo player
- Jackie Mann (1914–1995), British fighter pilot
- Johnny Mann (born 1928), American composer and recipient of multiple Grammy Awards
- Johnny Mann (baseball) (1898–1977), American baseball player
Famous quotes containing the word mann:
“Disease was a perverse, a dissolute form of life.”
—Thomas Mann (1875–1955)