The 1965 Lowood 4 Hour was an endurance motor race for production touring cars, held at the Lowood circuit in Queensland, Australia on 28 March 1965. The race, which was organised by the Queensland Racing Drivers Club, was the second annual Lowood 4 Hour. There were 33 starters in the event, with the field divided into four classes according to the retail price of each vehicle.
Although the Morris Cooper S driven by John Harvey and Brian Foley took "line honours", outright results were not officially recognised and official results were only issued for class placings.