John or Jack Bowen may refer to:
- John Bowen (Royal Navy officer) (1780–1827), English sailor and administrator; founded the first settlement at Hobart, Australia
- John Bowen (pirate) (died 1704), pirate active in the Indian Ocean and Red Sea
- John Bowen (antiquary) (1756–1832), English painter, genealogist and antiquarian
- John Bowen (alderman) (1844–1926), English businessman
- John Clyde Bowen (1888–1978), U.S. federal judge
- John J. Bowen Jr. (born 1955), American entrepreneur
- John S. Bowen (1830–1863), American Confederate general
- John S. Bowen (executive) (born c. 1927), American advertising executive
- John S. Bowen (sound designer), American synthesizer designer
- John Templeton Bowen (1857–1940), American dermatologist
- John T. Bone (John Gilbert Bowen, 1947–2019), British-born American pornographic film director
- John W. Bowen (1910–1977), U.S. Army lieutenant general
- John Bowen, 3rd Baronet (1918–1939), of the Bowen baronets