John Wren-Lewis (1923 – 25 June 2006) was a British-born scientist who taught at universities in Great Britain and the United States of America. He became known for his publications ranging over the fields of science, psychology, education and religion. He played a leading part in the so-called "Death of God" movement in Britain. In later life, after a traumatic near-death experience in Thailand in 1983, he wrote and taught about the meaning of mysticism and a broad spectrum of spiritual teachings.