Collarenebri is a town in north western New South Wales, Australia. The town in the Walgett Shire local government area and on the Barwon River approximately 75 kilometres (47 mi) northeast of Walgett and south west of Mungindi on the Gwydir Highway. It is 16 km (9.9 mi) from Pokataroo which was the nearest railway town prior to closure of the rail service there.