SIL International (Formerly: Summer Institute of Linguistics / Société International de Linguistique) is an international non-governmental agency active in language research and documentation in Africa and around the world. It is based in Dallas, Texas, U.S., and has offices in many African countries.


SIL publishes Ethnologue (, the oft-cited catalog of all the world's languages. Ethnologue is referenced in all the Major Languages and Countries profiles on this site.

SIL is also the RA for ISO-639-3 (codes for identifying languages).

SIL also offers Unicode fonts, some keyboard layouts, and information on aspects of multilingual computing:

Other links

Wikipedia, "SIL International,"

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