Wiyot (also Wishosk) is an extinct Algic language, formerly spoken by the Wiyot people of Humboldt Bay, California. The language's last native speaker, Della Prince, died in 1962. Some Wiyots are attempting a revival of the language.
Concerning the etymology of Wiyot (AKA Wishosk), Lyle Campbell writes, "Wiyot is from wíyat, the native name for the Eel River delta, which also referred to one of the three principal groups of Wiyots (Elsasser 1978:162)."
He also notes:
"The connection of Wiyot and Yurok in northern California (which together were formerly called 'Ritwan, after Dixon and Kroeber's  grouping of the two as one of their more remote Californian stocks) with Algonquian was first proposed by Sapir (1913) and was quite controversial at that time (see Michelson 1914, 1915; Sapir 1915a, 1915b; see also Chapter 2), but the relationship has subsequently been demonstrated to the satisfaction of all (see Haas 1958; Teeter 1964a; Goddard 1975, 1979, 1990). Before 1850 the Yurok lived on the lower Klamath River. The Wiyot (earlier called Wishosk) lived in the Humboldt Bay area, in the redwood belt; the last fully fluent speaker died in 1962 (Teeter 1964b). Many scholars have commented that although Wiyot and Yurok are neighbors in northern California, they seem not to have a closer relationship with each other than either has with Algonquian."
The consonants of Wiyot given in the Conathan Practical Orthography:
- Campbell (1997:152)
- "Wiyot". Native-Languages.org. Retrieved 2009-09-26.
- Campbell (1997:401)
- Wyot Tribe - Language
- Language Geek: Wiyot Fonts
- "Wiyot". Ethnologue. Retrieved 2012-08-02.
- Wiyot language overview at the Survey of California and Other Indian Languages
- OLAC resources in and about the Wiyot language
- "Wiyot". California Language Archive. Retrieved 2012-08-02.
- Wyot and Hupa Language Bibliography
- Wiyot Book. University of California Publications. Retrieved 2012-08-26.
- "Live Your Language Alliance (LYLA)". Retrieved 2012-08-02. "It is the desire of the Live Your Language Alliance to hear and speak the traditional languages of the Tolowa, Karuk, Yurok, Hupa, Tsnungwe, Wiyot, Mattole, and Wailaki."
- Campbell, Lyle. (1997). American Indian languages: The historical linguistics of Native America. New York: Oxford University Press.
- Dixon, Roland; & Kroeber, Alfred L. (1913). New linguistic families in California. American Anthropologist, 5, 1-26.
- Elsasser, Albert B. (1978). Wiyot. In R. F. Heizer (Ed.), California (pp. 153-163). Handbook of North American Indians (Vol. 8) (W. C. Sturtevant (Ed.)). Washington, D. C.: Smithsonian Institution.
- Goddard, Ives. (1975). Algonquian, Wiyot, and Yurok: Proving a distant genetic relationship. In M. D. Kinkade, K. L. Hale, & O. Werner (Eds.), Linguistics and anthropology in honor of C. F. Voegelin (pp. 249-262). Lisse: Peter de Ridder Press.
- Goddard, Ives. (1979). Comparative Algonquian. In L. Campbell & M. Mithun (Eds.), The languages of native America: Historical and comparative assessment (pp. 70-132). Austin: University of Texas Press.
- Goddard, Ives. (1990). Algonquian linguistic change and reconstruction. In P. Baldi (Ed.), Linguistic change and reconstruction methodology (pp. 99-114). Berlin: Mouton de Gruyter.
- Golla, Victor. (2011). California Indian Languages. Berkeley: University of California Press. ISBN 978-0-520-26667-4.
- Haas, Mary R. (1958). Algonkian-Ritwan: The end of a controversy. International Journal of American Linguistics, 24, 159-173.
- Kroeber. "Wiyot. Languages North of San Francisco". University of California Publications in Am. Arch. and Etho. 9. Retrieved 2012-07-07.
- Michelson, Truman. 1914. Two alleged Algonquian languages of California. American Anthropologist, 16, 361-367.
- Michelson, Truman. 1915. Rejoinder (to Edward Sapir). American Anthropologist, 17, 4-8.
- Mithun, Marianne. (1999). The languages of Native North America. Cambridge: Cambridge University Press. ISBN 0-521-23228-7 (hbk); ISBN 0-521-29875-X.
- Sapir, Edward. 1913. Wiyot and Yurok, Algonkin languages of California. American Anthropologist, 15, 617-646.
- Sapir, Edward. (1915)a. Algonkin languages of California: A reply. American Anthropologist, 17, 188-194.
- Sapir, Edward. (1915)b. Epilogue. American Anthropologist, 17, 198.
- Teeter, Karl V. (1964)a. Algonquian languages and genetic relationship. In Proceedings of the ninth international congress of linguists (pp. 1026-1033). The Hague: Mouton.
- Teeter, Karl V. (1964)b. The Wiyot language. University of California publications in linguistics. Berkeley: University of California Press.