John Rayner Heppenstall was an English novelist, poet, diarist, and a BBC radio producer.
Heppenstall's first novel The Blaze of Noon, was neglected at the time. Much later, in 1967, it received an Arts Council award. He was Francophile in literary terms, and his non-fiction writing reflects his tastes.
Critical attention has linked him to the French nouveau roman, in fact as an anticipator, or as a writer of the "anti-novel". Several critics (including, according to his diaries, Helene Cixous) have named Heppenstall in this connection. He is sometimes therefore grouped with Alain Robbe-Grillet, or associated with other British experimentalists: Anthony Burgess, B. S. Johnson, Ann Quin, Alan Burns, Stefan Themerson and Eva Figes. The Connecting Door (1962) is singled out as influenced by the nouveau roman.
He was certainly influenced by Raymond Roussel, whose Impressions of Africa he translated. Later novels include The Shearers, Two Moons and The Pier. He also wrote a short study of the French Catholic writer Léon Bloy.