Trenah is a rural locality in the local government area (LGA) of Dorset in the North-east LGA region of Tasmania.

The locality is about 41 kilometres (25 mi) south-east of the town of Scottsdale.

The 2016 census recorded a population of 11 for the state suburb of Trenah.

[4] Route C426 (Barnett Road) passes to the north-east.

This Tasmania geography article is a stub.