John Edgar Courtney (born 1934) is an Australian farmer and amateur ornithologist. He helped put together the first Field Guide to Australian Birdsong, produced by the Bird Observers Club of Australia. He joined the Royal Australasian Ornithologists Union (RAOU) in 1959 and was the RAOU's New England regional representative 1971–1978. In 1999 he was awarded the RAOU's John Hobbs Medal for outstanding contributions to Australian ornithology as an amateur.