Brewarrina is a town in north-west New South Wales, Australia on the banks of the Barwon River in Brewarrina Shire. The name Brewarrina is derived from 'burru waranha', a Weilwan name for a species of Acacia, Cassia tree, "Acacia clumps", "a native standing" or "place where wild gooseberry grows". It is 96 kilometres (60 mi) east of Bourke and west of Walgett on the Kamilaroi Highway, and 787km from Sydney. The population of Brewarrina in 2016 was 1,143. Other towns and villages in the Brewarrina district include: Goodooga, Gongolgon, Weilmoringle and Angledool.

Barwon River, a perennial river that is part of the Murray–Darling basin, is located in the north-west slopes and Orana regions of New South Wales, Australia.