10 endangered languages that risk extinction Hawaian – Critically endangered. Potawatomi – Critically endangered. Ume Saami – Critically endangered. Tlicho (Dogrib) – Vulnerable. Ainu (Hokkaido) – Critically endangered. Mudburra – Severely endangered. Chemehuevi – Critically endangered. Kamang – Vulnerable. More items... Sep 29, 2021