Gulargambone is a small town in the central west plains of New South Wales, Australia, on the banks of the Castlereagh River, in Coonamble Shire. It is 382 km (and 490 km by road) north west of Sydney. At the 2016 census, Gulargambone had a population of 400. Its name is derived from the local Wiradjuri people's word for "Watering place of many birds" or 'Gillahgambone' for 'place of galahs'. Gulargambone was first occupied by Europeans in the mid nineteenth century and gazetted as a village in 1883.