Gilgandra is a country town in the central west region of New South Wales, Australia, and services the surrounding agricultural area where wheat is grown extensively together with other cereal crops, and sheep and beef cattle are raised. Sitting at the junction of the Newell, Oxley and Castlereagh highways, the town is located in a wide bend of the Castlereagh River downstream from its source near Coonabarabran, directly downstream from Mendooran, and upstream from Gulargambone and Coonamble. It is 432 km north-west of Sydney, and is located approximately halfway on the inland route from Melbourne to Brisbane. The town is the administrative seat for the Gilgandra Shire.
It is known as the town of windmills and the home of the 'Coo-ees', and is a gateway to the Warrumbungles National Park.