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 (1857–1932), British businessman and member of parliament Sir John Barlow, 2nd Baronet (1898–1986), British member of parliament 1951–1966 John Barlow (Canadian politician) (born 1971), Canadian member of parliament from 2014 until present John M. Barlow (1833–1903), American businessman and politician

Others John Barlow (diplomat), English Tudor diplomat and spy John Barlow (priest) (1799–1869), Anglican clergyman and scientist John Barlow (entomologist) (1872–1944), American entomologist and college administrator John Barlow, New Zealander convicted of murdering businessmen Gene and Eugene Thomas John Barlow (novelist) (born 1967), English novelist John Barlow (veterinary surgeon) (1815–1856), British professor in Edinburgh and father of John Henry Barlow John Brereton Barlow (1924–2008), South African cardiologist John Henry Barlow (1855–1924), British Quaker "ambassador for peace", son of John Barlow (veterinary scientist) John Noble Barlow (1861–1917), English impressionist painter John Peleg Barlow (1918–1985), American oceanographer John Perry Barlow (1947–2018), American digital rights activist and former lyricist for the Grateful Dead John W. Barlow (1838–1914), career officer in the United States Army John Y. Barlow (1874–1949), 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 ( 1652–1695), of the Barlow baronets

See also Jack Barlow (1924– 2011), American country music singer and songwriter