Chukchi ˈtʃʊktʃiː, also known as Chukot, is a Chukotko–Kamchatkan language spoken by the Chukchi people in the easternmost extremity of Siberia, mainly in Chukotka Autonomous Okrug. The language is closely related to Koryak. Chukchi, Koryak, Kerek, Alutor, and Itelmen form the Chukotko-Kamchatkan language family. There are many cultural similarities between the Chukchis and Koryaks, including economies based on reindeer herding. Both peoples refer to themselves by the endonym Luorawetlat (ԓыгъоравэтԓьат [ɬəɣʔorawetɬʔat]; singular Luorawetlan ԓыгъоравэтԓьан [ɬəɣʔorawetɬʔan]), meaning "the real people". All of these peoples and other unrelated minorities in and around Kamchatka are known collectively as Kamchadals.
Chukchi and Chukchee are anglicized versions of the Russian exonym Chukcha (plural Chukchi). This came into Russian from Čävča, the term used by the Chukchis' Tungusic-speaking neighbors, itself a rendering of the Chukchi word чавчыв [tʃawtʃəw], which in Chukchi means "[a man who is] rich in reindeer," referring to any successful reindeer herder, a wealthy man by local standards.
Although Chukchi language is taught in 28 elementary schools in Chukotka Autonomous Region to 1616 children (according to 2015-2016 data), and there are several hours of daily TV and radio broadcasts in the Chuckchi language, the everyday use and proficiency in the language is declining among native Chukchis. According to the 2020 census, 8,526 of the 16,200 Chukchi people speak Chukchi; and most Chukchi now speak Russian (fewer than 100 report not speaking Russian at all). In the UNESCO Red Book, the language is on the list of endangered languages.
Many Chukchis use the language as their primary means of communication both within the family and while engaged in their traditional pastoral economic activity (reindeer herding). The language is also used in media (including radio and TV translations) and some business activities.