The Ngiyambaa language is a Pama–Nyungan language of the Wiradhuric subgroup. It was the traditional language of the Wangaaybuwan and Wayilwan peoples of New South Wales, Australia, but is now moribund; according to Donaldson by the 1970s there were only about ten people fluent in Wangaaybuwan, whilst there were only a couple of Wayilwan speakers left.