John Burnet of Barns is an 1898 novel by the Scottish author John Buchan, published when he was 23 years of age. His second novel, it had first appeared in serial form in Chambers's Journal earlier that year. The novel follows the adventures of John Burnet (a fictional relative of the 17th-century cleric and historian Gilbert Burnet), supposed to have been born at Barns in Tweeddale, Scotland in 1666. It is written as an autobiography, with the eponymous writer detailing the events of his life as a first-person narrative.