The Academy of St Martin in the Fields (ASMF) is an English chamber orchestra, based in London. John Churchill, then Master of Music at the London church of St Martin-in-the-Fields, and Neville Marriner founded the orchestra as "The Academy of St. Martin-in-the-Fields", a small, conductorless string group. The ASMF gave its first concert on 13 November 1959, in the church after which it was named. In 1988, the orchestra dropped the hyphens from its full name.