John Barlow (died 1718) was a Welsh politician who sat in the House of Commons from 1715 to 1718.
He married Anne Owen, daughter of Sir Hugh Owen, 2nd Bt MP of Orielton, Pembrokeshire.
[1] In 1715 Barlow stood at a by-election at Haverfordwest and was defeated by a relation, Sir George Barlow of Slebech.
However he was then awarded the seat on petition and represented Haverfordwest as Member of Parliament until his death two and a half years later.
[1] His daughter Anne married Hugh Owen who inherited Lawrenny and changed his name to Barlow.