Kihaya ni lugha ya Kibantu nchini Tanzania inayozungumzwa na Wahaya. Mwaka wa 2006 idadi ya wasemaji wa Kihaya imehesabiwa kuwa watu 1,300,000. Kufuatana na uainishaji wa lugha za Kibantu wa Malcolm Guthrie Kihaya iko katika kundi la E20. lugha ya Kihaya kwenye Multitree makala za OLAC kuhusu Kihaya lugha ya Kihaya katika Glottolog http://www.ethnologue.com/language/hay http://www.african.gu.se/tanzania/weblinks.html Archived 4 Oktoba 2006 at the Wayback Machine. http://www.linguistics.berkeley.edu/CBOLD/Docs/TLS.html (tovuti hiyo ina msamiati wa Kihaya) Maho, Jouni & Bonny Sands. 2002. The languages of Tanzania: a bibliography. (Orientalia et africana gothoburgensia, no 17.) Göteborg: Acta Universitatis Gothoburgensis. Pp ix, 428. ISBN 91-7346-454-6 Kitabu hiki kinataja marejeo mengine kama: Betbeder, Paul; Jones, John. 1949. A handbook of the Haya language. Bukoba (Tanganyika): White Fathers Printing Press. Byarushengo, Ernest Rugwa; Duranti, Alessandro; Hyman, Larry M[ichael]. (Eds.) 1977. Haya grammatical structure: phonology, grammar, discourse. (Southern California occasional papers in linguistics (SCOPIL), no 6.) Los Angeles: Department of Linguistics, University of Southern California. Kurasa 213. Herrmann, [Kapitän] C. 1904.