The Kawaiisu language is an Uto-Aztecan language spoken by the Kawaiisu people of California.
Kawaiisu is a member of the Southern Numic division of the Uto-Aztecan language family.
The Kawaiisu homeland was bordered by speakers of non-Numic Uto-Aztecan languages: the Kitanemuk to the south spoke Takic, the Tubatulabal to the north spoke Tubatulabal, the Yokuts to the west were non-Uto-Aztecan. Because they shared the Southern Numic language, the Chemehuevi to the east are considered the closest relatives to Kawaiisu.
The remaining Kawaiisu speakers live in the Tehachapi area of California.
In 1994, the language was severely endangered, with perhaps fewer than 20 remaining speakers.
In 2011, The Kawaiisu Project received the Governor’s Historic Preservation Award for its efforts to document the Kaiwaiisu language and culture, including "the Handbook of the Kawaiisu, language teaching and the Kawaiisu Language and Cultural Center [and] the Kawaiisu exhibit at the Tehachapi Museum." As of 2012, the Kawaiisu Language and Cultural Center offers language classes and DVDs for home learning, as well as training for other groups seeking to create language learning programs and materials.
The Kawaiisu (also Nuwa or Nuooah) are a Native American group which lives in the southern California Tehachapi Valley and across the Tehachapi Pass in the southern Sierra Nevada Mountains to the north, toward Lake Isabella and Walker Pass. Historically, the Kawaiisu also traveled eastward on food-gathering trips to areas in the northern Mojave Desert, to the north and northeast of the Antelope Valley, as far east as the Panamint Valley, the Panamint Mountains, and the western edge of Death Valley. Today, some Kawaiisu people are enrolled in the Tule River Indian Tribe.
Before European contact, the Kawaiisu lived in permanent winter villages of 60 to 100 people. They often divided into smaller groups during the warmer months of the year and harvested California native plants in the mountains and deserts, and animals, for food and raw materials.
The Kawaiisu are related by language and culture to the Southern Paiute of southwestern Nevada and the Chemehuevi of the eastern Mojave Desert of California. They may have originally lived in the desert before coming to the Tehachapi Mountains region, perhaps as early as 2000 years ago or before.