Brian Muir (30 June 1931 – 11 September 1983) was an Australian racing driver.

In 1968 he finished as runner-up in the British Saloon Car Championship driving a Ford Falcon behind fellow Australian Frank Gardner.

He drove a Chevrolet Camaro to the checkered flag, making him the first Australian to claim the trophy.

He also regularly competed in the 24 Hours of Le Mans driving alongside the likes of Jackie Oliver, Graham Hill and Jacky Ickx, and he won the 1000 km Catalunya in 1968 (with Francisco Godia Sales).

The last race Muir competed in was the RAC Tourist Trophy before dying on his way home.