Nuu-chah-nulth (nuučaan̓uɫ), a.k.a. Nootka (), is a Wakashan language in the Pacific Northwest of North America on the west coast of Vancouver Island, from Barkley Sound to Quatsino Sound in British Columbia by the Nuu-chah-nulth peoples. Nuu-chah-nulth is a Southern Wakashan language related to Nitinaht and Makah.
It is the first language of the indigenous peoples of the Pacific Northwest Coast to have documentary written materials describing it. In the 1780s, Captains Vancouver, Quadra, and other European explorers and traders frequented Nootka Sound and the other Nuu-chah-nulth communities, making reports of their voyages. From 1803 to 1805 John R. Jewitt, an English blacksmith, was held captive by chief Maquinna at Nootka Sound. He made an effort to learn the language, and in 1815 published a memoir with a brief glossary of its terms.