Koryak is a Chukotko-Kamchatkan language spoken by about 1,700 people in the easternmost extremity of Siberia, mainly in Koryak Okrug. It is mostly spoken by Koryaks. Its close relative, the Chukchi language, is spoken by about three times that number. The language together with Chukchi, Kerek, Alutor and Itelmen forms the Chukotko-Kamchatkan language family. Its name in Koryak is нымылан Nymylan, but the Russian name is more common.
Bogoras, Waldemar, and Franz Boas. Koryak Texts. Leyden: E.J. Brill, 1917.
Comrie, Bernard. Inverse Verb Forms in Siberia Evidence from Chukchee, Koryak and Kamchadal. Amsterdam: Bibliotheek v.h. Inst. voor Algemene Taalwetenschap v.d. Univ. van Amsterdam], 1985.
Zhukova, A. N., and Tokusu Kurebito. Basic topical dictionary of the Koryak-Chukchi languages = Basovyĭ tematicheskiĭ slovarʹ kori︠a︡ksko-chukotskikh i︠a︡zykov. Tokyo, Japan: Research Institute for Languages and Cultures of Asia and Africa, Tokyo University of Foreign Studies, 2004. ISBN4-87297-896-X