The National Library of Lithuania participates in activities of the following international organizations and networks:

• The International Federation of Library Associations (IFLA)
• The Conference of Directors of National Libraries (CDNL)
• The Association of European Research Libraries (LIBER)
• The Conference of European National Librarians (CENL)
• The European Library (TEL)
• The European digital library "Europeana"
• The International ISSN, ISBN and ISMN Agencies
• The association of the libraries of the Baltic Sea region states Bibliotheca Baltica
• International Association of Music Libraries (IAML)
• International Literacy Association (ILA)
• The International Board on Books for Young People (IBBY)