South Preston is a rural locality in the local government area (LGA) of Central Coast in the North-west and west LGA region of Tasmania.

The locality is about 28 kilometres (17 mi) south-west of the town of Ulverstone.

The 2021 census recorded a population of 21 for the state suburb of South Preston.

[2] The Leven River forms most of the western boundary.

[3] Route C125 (South Preston Road) passes through from north to south-east.