Nungali, or (with a different prefix) Yilngali, is an Australian language which is believed to be extinct. It was spoken in the Northern Territory of Australia, around the upper Daly River. Its closest relative is the Jaminjung language. It is the only Yirram language which has retained the original four-class system in nominals. The four classes are masculine, feminine, neuter and plants, and each of the classes have separate prefixes expressing the absolutive case, locative or ergative case, and the dative case.