National Library of Argentina

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National Library Mariano Moreno
Biblioteca Nacional Mariano Moreno
The current building, photographed in 2013
Location	Agüero 2502 Recoleta, Buenos Aires, Argentina
Type	National Library
Established	1810; 214 years ago (1810)
Architect(s)	Clorindo Testa, Francisco Bullrich and Alicia Cazzaniga[1]
Collection
Size	1,000,000 registries
Other information
Budget	A$ 651,345,809 (2018)
Director	Juan Sasturain
Employees	746 (2020)
Website	bn.gov.ar

The Mariano Moreno National Library (Spanish: Biblioteca Nacional Mariano Moreno) is the largest library in Argentina. It is located in the barrio of Recoleta in Buenos Aires. The library is named after Mariano Moreno, one of the ideologists of the May Revolution^[2] and its first director.

The National Library is an agency under the Ministry of Culture of Argentina.