Kerry Wendell Thornley (April 17, 1938 – November 28, 1998) was an American author. He is known as the co-founder (along with childhood friend Greg Hill) of Discordianism, in which context he is usually known as Omar Khayyam Ravenhurst or simply Lord Omar. He and Hill authored the religion's text Principia Discordia, Or, How I Found Goddess, and What I Did to Her When I Found Her. Thornley also was known for his 1962 manuscript The Idle Warriors, which was based on the activities of his acquaintance Lee Harvey Oswald before the 1963 assassination of John F. Kennedy.
