Mount Twynam is a mountain located on the Main Range, part of the Great Dividing Range, in the Snowy Mountains in New South Wales, Australia.

The mountain is located close the border between New South Wales and Victoria.

With an elevation of 2,195 metres (7,201 ft) above sea level, Mount Twynam is the 3rd-highest mountain on mainland Australia.

It is located 8 kilometres (5.0 mi) north-east of Mount Kosciuszko.

[4] The mountain is large but unimposing, and has good and far-reaching views over Blue Lake Cirque and the Western Falls.