Mount Thetis is a mountain in the Central Highlands region of Tasmania, Australia.

It is part of the Pelion Range and is situated within the Cradle Mountain-Lake St Clair National Park.

It is a major feature of the national park, and is a popular venue with bushwalkers and mountain climbers.

With an elevation of 1,482 metres (4,862 ft) above sea level, Mount Thetis is the twentieth-highest mountain in Tasmania.

This Central Highlands, Tasmania geography article is a stub.