National Library and Documentation Services Board, National library and documentation center in Colombo District, Sri Lanka.

The National Library and Documentation Services Board occupies a five-story building housing more than one million books and documents across roughly 11,000 square meters. Three reading areas provide seating for around 320 people, along with specialized study rooms, a venue for lectures holding about 145 people, and a conference space for smaller meetings.

The Ceylon National Library Services Board was created by Act No. 17 of 1970, which gave the library its first legal basis. Act No. 51 of 1998 replaced it with the National Library and Documentation Services Board and set out its powers. The library building was opened on 27 April 1990 by President Ranasinghe Premadasa.

The board's remit includes organising library and information services that respect the cultural identity of Sri Lanka's different communities, and encouraging local book publishing and reading. Its collection, built since 1970 through purchases, deposits, donations and exchanges, holds books, newspapers, periodicals, music, musical instruments, maps and manuscripts.

The library building was inaugurated on 27 April 1990 by President Ranasinghe Premadasa and stands in Colombo, under the Ministry of Education. Its ten departments handle acquisitions, reader services, bibliographic control, information technology, conservation, research, the digital library, library promotion, training, and publications. Ask staff which department holds the material you need before your visit.

The institution operates a specialized conservation and restoration team that helps libraries across the country protect their collections from deterioration. This national preservation program makes it more than just a repository, turning it into a guardian of written heritage throughout the island.