The National Library of Cambodia (Khmer: បណ្ណាល័យជាតិកម្ពុជា, romanized: bannalycheate kampouchea; French: Bibliothèque nationale du Cambodge) is the national library of Cambodia, based in Phnom Penh.

From 1975-1979, the Khmer Rouge destroyed many of the books and bibliographical records, it is commonly thought that about 20% of its 65,000 materials survived,[1][2] though the true number lost remains unknown.

Thereafter it was successively managed by French staff until the appointment of the first Khmer Director, Mr Pach Chhoeun, in 1951.

After independence in 1954 there was a steady growth in Cambodian publishing, which was reflected in the increased number of Khmer language books in the National Library.

Closed down in 1975 during the Khmer Rouge era, the National Library was used for several years as accommodation by members of the Pol Pot regime, who destroyed many of the books.