South Mackay is a coastal suburb of Mackay in the Mackay Region, Queensland, Australia. In the 2016 census, South Mackay had a population of 6,706 people.

Mackay Airport located in South Mackay, Queensland, Australia is a major Australian regional airport that services the city of Mackay, with flights to the cities of Brisbane, Rockhampton, Townsville, Hamilton Island, Cairns, Sunshine Coast and Melbourne. In the year ending 30 June 2012, the airport handled 969,900 passengers making it the 14th busiest airport in Australia.