Coonamble is a town on the central-western plains of New South Wales, Australia. It lies on the Castlereagh Highway 95 km north-west of Gilgandra and 115 km south-east of Walgett. At the 2016 census, Coonamble had a population of 2,750. It is the regional hub for wheat growing and sheep and wool. The name for the town is taken from the Gamilaraay word guna (faeces) and -bil.