Nyngan is a town in the central west of New South Wales, Australia. It is located in the Bogan Shire Local Government Area. At the 2006 census, Nyngan had a population of 1,975 people. Nyngan is situated on the Bogan River between Narromine and Bourke, on the junction of the Mitchell Highway and Barrier Highway, 583 km north-west of Sydney. The Barrier Highway starts at Nyngan, and runs west to Cobar and on through Wilcannia and Broken Hill into South Australia.