Inuinnaqtun is an indigenous language of Canada. It is related very closely to Inuktitut, and many people believe that Inuinnaqtun is only a dialect of Inuktitut. The government of the Northwest Territories does not recognize Inuinnaqtun as a separate language, but Nunavut lists it as one of its official languages alongside Inuktitut.

Inuinnaqtun is used primarily in the communities of the western Kitikmeot Region of Nunavut. It is written using the Latin alphabet.