Don Valley is a town in Victoria, Australia, approximately 70 km east of Melbourne's central business district, located within the Shire of Yarra Ranges local government area. Don Valley recorded a population of 586 at the 2021 census. A well known farm on Don Valley is Haining Farm, a 65-hectare cattle and dairy farm with Jersey and Friesian cows and other farm animals, located at the entrance of Don River into the Yarra River.