The Gitxsan language /ˈɡɪtsæn/, or Gitxsanimaax (also rendered Gitksan, Giatikshan, Gityskyan, Giklsan), is a First Nations language of northwestern British Columbia. It is a Tsimshianic language, closely related to the neighboring Nisga’a language. The two groups are, however, politically separate and prefer to refer to Gitxsan and Nisga'a as distinct languages. Gitxsanimx is an endangered language.