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 northeast of Walgett and south west of Mungindi on the Gwydir Highway. It is from Pokataroo which was the nearest railway town prior to closure of the rail service there. CThe town is above sea level.
At the 2011 census, Collarenebri had a population of 386. .
Collarenebri is a native word of the Gamilaraay galariinbaraay, meaning 'place of flowers' or 'eucalyptus blossoms'.