'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.

The 2000 US Census estimated the language to be spoken by 64 persons between the ages of 5 and 17, including 4 monolingual speakers.

[citation needed] Perhaps another 50 individuals of all ages have restricted control of traditional Hupa phonology, grammar and lexicon.

The consonants of Hupa in the standard orthography are listed below (with IPA notation in slashes): Vowels may be lengthened.

[7] According to Victor Golla (1970, 2001 and others), each Hupa theme falls into one of eight structural classes according to its potential for inflection, along the following three parameters: active vs. neuter, transitive vs. intransitive, and personal vs.