English is the official language in Australia.

Australia has no official language, it is largely monolingual with English being the de factonational language.Australian English has a distinctive accent and vocabulary. According to the 2011 census, 76.8% of people spoke only English at home. Other languages spoken at home included Mandarin 1.6%, Italian 1.4%, Arabic 1.3%, Cantonese 1.2% and Greek 1.2%.

A considerable proportion of first- and second-generation migrants are bilingual. It is believed that there were almost 400 Australian Aboriginal languages at the time of first European contact. Only about 70 of these languages have survived and all but 30 of these are now endangered. An indigenous language remains the main language for about 50,000 (0.25%) people. Australia has a sign language known as Auslan, which is the main language of about 6,500 deaf people.