Koryak (/ˈkɔːriæk/ KOR-ee-ak), also known as Nymylan, Korjakische, Chavchuven and Koræiki,[2] is a Chukotko-Kamchatkan language spoken by 1,665 people as of 2010[1] in the easternmost extremity of Siberia, mainly in Koryak Okrug.

Its close relative, the Chukchi language, is spoken by about three times that number.

The language together with Chukchi, Alyutor and Itelmen forms the Chukotko-Kamchatkan language family.

[3] Its native name in Koryak is нымылан nymylan, but variants of the Russian name "Koryak" are most commonly used in English and other languages.

The Chukchi and Koryaks form a cultural unit with an economy based on reindeer herding and both have autonomy within the Russian Federation.