The 2021 Hi-Tec Oils Bathurst 6 Hour was an endurance race for Group 3E Series Production Cars. The event, which was staged at the Mount Panorama Circuit, near Bathurst, in New South Wales, Australia, on 4 April 2021, was the fifth running of the Bathurst 6 Hour. The race was won by Shane Smollen, Rob Rubis and Shane van Gisbergen, driving a BMW M4.