John Streeter Manifold AM (21 April 1915 – 19 April 1985) was an Australian poet and critic. He was born in Melbourne, into a well known Camperdown family. He was educated at Geelong Grammar School, and read modern languages at Jesus College, Cambridge. While in Cambridge he joined the Communist Party of Great Britain. He was involved in an attempt to create a successor (Poetry and the People) to Left Review, when the latter folded in 1938.