Ópata (also Tegüima, Teguima, Tehuima, Tehui, Eudeve, Eudeva, Heve, Dohema, Jova, Joval, Tonichi, Sonori and Ure; Opata: Teguima) is either of two closely related Uto-Aztecan languages, Teguima and Eudeve, spoken by the Opata people of northern central Sonora in Mexico and Southeast of Arizona in the United States.

It was believed to be dead already in 1930, and Carl Sofus Lumholtz reported the Opata to have become "Mexicanized" and lost their language and customs already when traveling through Sonora in the 1890s.

Buckingham Smith translated Grammatical Sketch of the Heve Language from an unpublished Spanish manuscript and it was published in 1861.

In a 1993 survey by the Instituto Nacional Indigenista, 15 people in the Mexican Federal District self-identified as speakers of Ópata.

Opata is an agglutinative language, where words use suffix complexes for a variety of purposes with several morphemes strung together.