Cumnock is a small town in New South Wales, Australia. It is located on the now closed cross-country railway line from Molong to Dubbo. The town is located in Cabonne Shire. At the 2011 census, Cumnock had a population of 275 people. In the 2021 census the "Suburbs and Localities" of Cumnock had a population of 491.

Cumnock is named after the Scottish town in Ayrshire, the home of an early settler named Straborn.

The Cumnock community pioneered a farmhouse rental program designed to attract new families to the area by making farmhouses available for rent for $1. This program has since spread to a number of other rural communities.

Cumnock is located at the epicentre of the Central Western NSW's food-and-wine triangle, i.e., Orange, Dubbo, and Mudgee.

The town is also known for its participation in the 120-kilometre Animals on Bikes 'Paddock Art' sculpture tourist trail which extends between Molong and the Dubbo Zoo, via Cumnock and Yeoval.

Notable people

Notable residents include:

• Chris McKivat, Olympian and dual rugby code international.
• Tim Gavin, Australian Rugby International.
• Susan Cullen-Ward, later married to Leka, Crown Prince of Albania.