The Meertens Institute (Dutch Meertens Instituut) in Amsterdam is a research institute which studies and documents language and culture in the Netherlands as well as Dutch language and culture throughout the world.

The institute is part of the Royal Netherlands Academy of Arts and Sciences (Koninklijke Nederlandse Akademie van Wetenschappen or KNAW).

Since 2001, the institute also houses the Secretariat of the International Society for Ethnology and Folklore (SIEF).

[2] In September 2016 the Meertens moved to the historic 'Spinhuis' building in downtown Amsterdam, jointly with the Huygens Institute, focusing on the history and culture of the Netherlands (also a KNAW institute, coming from The Hague).

[3] The audio collection in the field of phonetics with recordings in the field of speech acquisition and dialects, formed at the University of Amsterdam by Dr. Louise Kaiser and Meertens, is housed at the Meertens Institute.