Rhyndaston is a rural locality in the local government area (LGA) of Southern Midlands in the Central LGA region of Tasmania.

The locality is about 25 kilometres (16 mi) south of the town of Oatlands.

The 2021 census recorded a population of 73 for the state suburb of Rhyndaston.

It is believed to be a Welsh term for "mouth of the hole", and was conferred by Charles Meredith, the Colonial Treasurer.

[4] Route C313 (Rhyndaston Road) runs through from north to south.