The National Library of Finland (Finnish: Kansalliskirjasto, Swedish: Nationalbibliotek) is the foremost research library in Finland. Administratively the library is part of the University of Helsinki. Until 1 August 2006, it was known as the Helsinki University Library. It was founded in 1640
In addition to being the most important of the libraries of the University of Helsinki, the National Library is responsible for storing the Finnish cultural heritage. By Finnish law, the National Library is entitled to receive copies of all printed matter, as well as audiovisual materials excepting films, produced in Finland or for distribution in Finland. These copies are then distributed by the Library to its own national collection and to reserve collections of five other university libraries. Also, the National Library has the obligation to collect and preserve materials published on the Internet.
The English language version of the website (which is also in Finnish and Swedish) is .