Greenlandic Sign Language

Inuit Sign Language (IUR, Inuktitut: Uukturausingit ᐆᒃᑐᕋᐅᓯᖏᑦ or Atgangmuurngniq ᐊᒼᖕᒨᕐᓂᖅ) is an Indigenous sign language isolate native to Inuit communities of the Canadian Arctic. It is currently only attested within certain communities in Nunavut, particularly around Baker Lake and Rankin Inlet. Although there is a possibility that it may be used in other places where Inuit people live in the Arctic, this has not been confirmed.

Of the estimated 155 deaf residents of Nunavut in 2000, around 47 were thought to use IUR, while the rest use ASL due to schooling. It is unknown how many hearing people use the language nor how many people are monolingual. As it is a highly endangered and relatively hidden language, it has no protection under the federal or territorial governments of Canada. However, IUR exists alongside ASL interpretation within the Nunavut Legislative Assembly as of 2008. Recently, there has been increased interest in the documentation of the language which would be done through the Nunavut Council for People with Disabilities and the Inuit Broadcasting Corporation (IBC). As well, there is push to expand the interpretation/translation programme through Arctic College to include IUR.

At least since the 18th century, hearing Inuit used some form of sign language for trade and communication between various Inuit languages, a similar role to that played by Plains Sign Language further south. This may have been IUR or at least its ancestor, as the region has a high incidence of congenital deafness. In the territory of Nunavut, for example, the incidence of hereditary deafness is six times that of southern Canada. The deaf are well integrated in the community, and there are perhaps two hearing people proficient in IUR for every deaf speaker, as in other communities with high rates of congenital deafness such as Martha's Vineyard. However, IUR is not (or no longer) used as a contact language among the hearing. Its users are the deaf and those hearing people they regularly communicate with.