Coleambally  is a small town in the Riverina of New South Wales, Australia, in Murrumbidgee Council.

Coleambally is one of the newest towns in the state of New South Wales, officially opened in June 1968, with the Post Office opening on 1 April 1970.

Designed to act as the centre for the surrounding Coleambally Irrigation Area, at the 2016 census, Coleambally had a population of 1331.

Its name is Aboriginal, probably meaning a swift in flight. The spine-tailed swift is one of the most powerful fliers known, wheeling and sweeping at high speed in search of flying insects.

Coleambally can be accessed by road from Sydney and Canberra via the Hume Highway and Burley Griffin Way and from Melbourne via the Hume Highway, Newell Highway and the Kidman Way.

Coleambally is a home to some of the most endangered species in Australia, the Bittern, Southern Bell Frog, Plains Wanderer, Superb Parrot and it has many other species of native flora and fauna. Coleambally has many kangaroos and birds, galahs and noisy minors.