List of language families

This article is a list of language families. This list only includes primary language families that are accepted by the current academic consensus in the field of linguistics; for language families that are not accepted by the current academic consensus in the field of linguistics, see the article "List of proposed language families".

Sign language families
The family relationships of sign languages are not well established due to a lagging in linguistic research, and many are isolates (cf. Wittmann 1991).