This is a list of endangered languages of Oceania, based on the definitions used by UNESCO.

According to the 2016 census, English is the only language spoken in the home for close to 72.7% of the population.

The next most common languages spoken at home are Mandarin (2.5%), Arabic (1.4%), Cantonese (1.2%), Vietnamese (1.2%) and Italian (1.2%).

A considerable proportion of first- and second-generation migrants are bilingual.

The following languages of New Caledonia may be considered endangered.