John Barlow
John Barlow may refer to:
Politicians
- John Barlow (died 1718), MP for Haverfordwest
- John Barlow (died 1739), MP for Pembrokeshire (UK Parliament constituency)
- Sir John Barlow, 1st Baronet, British businessman and Member of Parliament
- Sir John Barlow, 2nd Baronet, British Member of Parliament 1951–1966
- John Barlow (Canadian politician), Canadian Member of Parliament from 2014 until present
- John M. Barlow, American businessman and politician
Others
- John Barlow (diplomat), English Tudor diplomat and spy
- John Barlow (priest), Anglican clergyman and scientist
- John Barlow (entomologist), American entomologist and college administrator
- John Barlow, New Zealander convicted of murdering businessmen Gene and Eugene Thomas
- John Barlow (novelist), English novelist
- John Barlow (veterinary surgeon), British professor in Edinburgh and father of John Henry Barlow
- John Brereton Barlow, South African cardiologist
- John Henry Barlow, British Quaker "ambassador for peace", son of John Barlow
- John Noble Barlow, English impressionist painter
- John Peleg Barlow, American oceanographer
- John Perry Barlow, American digital rights activist and former lyricist for the Grateful Dead
- John W. Barlow, career officer in the United States Army
- John Y. Barlow, Mormon fundamentalist and polygamist
- John Barlow (footballer, born 1875), played for Everton, Reading, Tottenham and Leicester.
- F. John Barlow, American businessman and mineral collector, see Barlow Planetarium
- Sir John Barlow, 1st Baronet of Slebetch, of the Barlow baronets