Boomi is a town in north western New South Wales, Australia. The town is in the Moree Plains Shire local government area, 728 kilometres (452 mi) north west of the state capital, Sydney, on the border on the New South Wales side of the MacIntyre River. Boomi is west of the Queensland town of Goondiwindi and north of Moree in New South Wales. At the 2016 census, Boomi and the surrounding farming area had a population of approximately 200.