Gustav Brunner (born 12 September 1950 in Graz) is an Austrian Formula One (F1) designer and engineer. He started his career in racing car design at the German-based constructor McNamara. He first entered F1 in a brief spell working for the ATS team in 1978, before designing cars for Formula Two and sportscar racing. He came to prominence in Formula One in 1983, by returning to ATS.