Guy Gillis McDonough (17 October 1955 – 26 June 1984) was an Australian rock musician best known for rhythm guitar and singer-songwriter with the iconic band Australian Crawl. He provided rhythm guitar and lead vocals on two of their well-known songs, "Oh No Not You Again" and "Errol". McDonough's solo 1985 release, My Place, was produced by his brother, Bill McDonough.