How many language groups did Aboriginal Australians have before European contact?

Aboriginal Australians had about 250 distinct languages and around 800 dialect varieties at the time of European contact in 1788, making the continent one of the most linguistically diverse in the world. Each language was associated with a particular nation, country, and set of cultural traditions, with mutual comprehension varying widely between neighbouring and distant languages.

The diversity reflected the long occupation and the relative isolation of different communities across the continent. Major Aboriginal language families include Pama-Nyungan (covering about 90 per cent of the continent), Yolngu Matha (north-east Arnhem Land), Bunuban (Kimberley), Gunwinyguan (western Arnhem Land), and several smaller families across the Top End. Tasmanian Aboriginal languages (at least nine were spoken before 1803) form an entirely separate group, with their relationship to mainland languages still unclear because of the limited surviving records.

European colonisation devastated Aboriginal languages. Many languages lost their last speakers during the frontier conflicts, epidemics, and the forced movement of Aboriginal people onto missions and reserves from the 1830s onwards. The Assimilation policies of the twentieth century actively discouraged use of Aboriginal languages, with children removed from families (the Stolen Generations) and punished for speaking their languages at school and on missions. Tasmanian Aboriginal languages ceased to be spoken in the nineteenth century, with revival now underway through palawa kani.

As of the 2021 census, 167 Indigenous languages are still in use, of which only about 12 are being learned by children as a first language. Major living Aboriginal languages include Pitjantjatjara and Yankunytjatjara in central Australia, the Yolngu Matha languages of north-east Arnhem Land, Warlpiri in central Australia, Walmajarri and Kukatja in the Kimberley, and Kala Lagaw Ya and Meriam Mir in the Torres Strait. Kriol, an Aboriginal English creole spoken across northern Australia, has more than 20,000 first-language speakers. Federal language revival programmes through the Indigenous Languages and Arts programme fund about 70 community language projects each year, supplemented by school programmes and university research.