Norwegian Sign Language, or NSL (Norwegian or, NTS), is the principal sign language in Norway. There are many sign language organizations and some television programs broadcast in NSL in Norway. The Norwegian Broadcasting Corporation airs Nyheter på tegnspråk (News in Sign Language) daily and Tid for tegn (Time for Signs) weekly. NSL is an official language as of 1 January 2022.

Relation to Malagasy Sign Language

The language is sometimes reported to be similar, or even identical to the sign language used in Madagascar. In fact, while Norwegian Sign Language may have influenced Malagasy sign language via the creation of schools for the deaf by Norwegian Lutheran missionaries, the languages are quite distinct. Out of a sample of 96 sign pairs, 18 pairs were identical between the two languages, 26 showed some level of similarity, and 52 appeared completely unrelated. It is not yet known to what degree the similarities are a result of direct borrowing, borrowing from a common source language (such as ASL or International Sign), mimesis of the thing they refer to, or sheer coincidence.