John Cowan (disambiguation)

John Cowan (born 1952) is an American musician.

John Cowan may also refer to:

Politics and law

 * John Cowan, Lord Cowan (1798–1878), Senator of the College of Justice in Scotland
 * Sir John Cowan (sheriff) (died 1842), Lord Mayor of London
 * John Cowan (Newfoundland politician) (1847–1927), politician in Newfoundland
 * John F. Cowan (1858–1917), North Dakota lawyer, politician, Attorney General, and judge
 * Sir John Cowan (Australian politician) (1866–1953), Australian politician
 * John Lancelot Cowan (1893–1971), Australian politician

Science and medicine

 * John Black Cowan (1828–1896), professor of medicine at the University of Glasgow
 * John Cowan (physician) (fl. 1870s), American physician and phrenologist
 * John Macqueen Cowan (1892–1960), Scottish botanist

Sports

 * John Cowan (footballer, born 1870) (1870–1937), Scottish footballer
 * Johnnie Cowan (1913–1993), American baseball player
 * John Cowan (footballer, born 1949), Northern Ireland international footballer

Others

 * Sir John Cowan, 1st Baronet (1814–1900), of the Cowan baronets, philanthropist
 * John Cowan (steel merchant) (1844–1929), Scottish iron and steel merchant
 * John Cowan (photographer) (1929–1979), British fashion photographer
 * John Cowan (RAN officer) (born 1957), Australian navy officer
 * John W. Cowan, American computer programmer