The 2011 Eastern Creek Six Hour was an endurance motor race for production cars, held on 11 December 2011, at Eastern Creek Raceway in Sydney, New South Wales, Australia. It was Round 5 of the 2011 Australian Manufacturers' Championship, Round 5 of the 2011 Australian Production Car Championship, Round 3 of the 2011 Australian Endurance Championship and Round 2 of the 2011 Australian Production Car Endurance Championship. The race was originally to be run over an eight-hour duration, but this was reduced to six hours shortly before the event was run.