The Culgoa River is a river that is part of the Darling catchment within the Murray–Darling basin and is located in South West Queensland.
The river is a continuation of the western branch of the Balonne River in southern Queensland, near Dirranbandi, and flows generally south-west across parts of the Darling Riverine Plains, joined by ten tributaries, including the Balonne and Birrie rivers, before forming its confluence with the Darling River near Bourke; descending 78 metres over its 489-kilometre course.
