John Blair
John Blair may refer to:
Politics
- John Blair Sr., American merchant and politician in the colony of Virginia
- John Blair Jr., American politician, Founding Father and jurist
- John Blair (Tennessee politician), American politician
- John Blair (Northern Ireland politician), Member of the Legislative Assembly for South Antrim
- John Knox Blair, Canadian politician, physician and teacher
- John Rutherfurd Blair, New Zealand politician
Sports
- John Blair (1890s footballer), Scottish footballer active 1894–1899
- John Blair (footballer, born 1898), Scottish footballer
- John Blair (English footballer), top scorer in the 1923–24 Oldham Athletic A.F.C. season
- John Blair (footballer, born 1905), Scottish footballer
- John Blair (footballer, born 1910), Scottish footballer
- John Blair (Australian footballer), Australian rules footballer
- John Blair (rugby union), New Zealand rugby union player
Other
- John Blair (historian), British historian, archaeologist, and academic
- John Blair (pastor), Presbyterian minister
- John Blair (priest), British clergyman and chronologist
- John Blair (writer), American poet, novelist, and short-story writer
- John Blair (musician), American violinist on the 1973 album Song of the New World
- John Blair (painter), Scottish painter
- John Blair (surgeon), Scottish surgeon
- John Hamilton Blair, Scottish mariner
- John Hunter Blair, British television producer
- John Insley Blair, American entrepreneur, railroad magnate, and philanthropist
- John Leo Blair, American businessman
- John T. Blair, American architect and builder