John Cowan (disambiguation)
John Cowan (born 1952) is an American musician.
John Cowan may also refer to:
- John Cowan (RAN officer) (born 1967), Australian navy officer
- John Cowan (politician) (1847–19??), politician in Newfoundland
- Sir John Cowan (sheriff) (died 1842), Lord Mayor of London
- John Lancelot Cowan (1893–1971), Australian politician
- Sir John Cowan, 1st Baronet (1814–1900), of the Cowan baronets, brother of Charles Cowan, son of Alexander Cowan, philanthropist
- Sir John Cowan (South Australian politician) (1866–1953), Australian politician
- John Cowan (computer scientist)
- John Cowan (photographer) (1929-1979), British fashion photographer
- John Cowan (footballer) (born 1949), Northern Ireland international footballer
See also
- Jon Cowan, American television producer and writer
- Jack Cowan (1927–2000), footballer
- John Cowans (1862–1921), Quartermaster-General to the Forces
- Cowan (disambiguation)