Middle Arm is a locality in the Upper Lachlan Shire, in the Southern Tablelands region of New South Wales, Australia.

[1] As of the 2021 Australian census, 377 people resided in Middle Arm, up from 362 in the 2016 census.

[3] The median age of persons in Middle Arm was 46 years.

There were more males than females, with 53.5% of the population male and 46.5% female.

This Southern Tablelands geography article is a stub.