Mawbanna is a locality and small rural community in the local government area of Circular Head, in the North West region of Tasmania, Australia. It is located about 40 kilometres (25 mi) south-east of the town of Smithton. The Arthur River forms the southern boundary, while the Black River forms a small part of the western boundary. The 2016 census determined a population of 135 for the state suburb of Mawbanna.