Yok-Utian is a proposed language family of California. It consists of the Yokuts language and the Utian language family.
While connections between Yokuts and Utian languages were noticed through attempts to reconstruct their proto-languages in 1986, it was not until 1991 that Yok-Utian was proposed and named by Geoffrey Gamble. Yok-Utian has been further supported by Catherine Callaghan, who has argued for the family's existence on the basis of lexical, morphological, and phonological similarities between the reconstructed proto-languages. However, she and others have noted that while it is compelling, the evidence presented is not conclusive.