Hupa (native name: Na꞉tinixwe Mixine꞉wheʼ, lit. "language of the Hoopa Valley people") is an Athabaskan language (of Na-Dené stock) spoken along the lower course of the Trinity River in Northwestern California by the Hoopa Valley Hupa (Na꞉tinixwe) and Tsnungwe/South Fork Hupa (Tse:ningxwe) and, before European contact, by the Chilula and Whilkut peoples, to the west.