The 2021 Gulf Western Oils Touring Car Masters was an Australian motor racing competition for touring cars manufactured between 1 January 1963 and the 31 December 1980 and IROC Porsche Class Automobiles, which had been modified in accordance with the series regulations.[1] It was sanctioned by Motorsport Australia as an Authorised Series, with TCM Racing Pty. Ltd appointed as the Category Manager for the series.[1]
John Bowe won the series,[2] his sixth Touring Car Masters title.[3]