Instituto Moreira Salles, Art museum and nonprofit organization in Gávea, Rio de Janeiro, Brazil

Instituto Moreira Salles is an art museum and nonprofit organization in Rio de Janeiro dedicated to photography, literature, music, and visual arts across its exhibition spaces. The building features multiple galleries displaying works from its permanent collections and contemporary installations.

The Instituto Moreira Salles was founded in 1992 by diplomat and banker Walther Moreira Salles, who opened its first cultural centre in Poços de Caldas, the region where his family settled in 1918. A São Paulo unit followed in 1996 in a mansion in Higienópolis, and the Rio de Janeiro unit opened in October 1999 in the family's former Gávea residence, built in 1951 to a design by Olavo Redig de Campos with gardens by Burle Marx.

The photography collection began in 1995 with 19th-century images and grew to about 2 million photographs, including the 1930s collection of anthropologist Claude Lévi-Strauss and, in 2016, the archive of Diários Associados, owner of O Jornal, Diário da Noite and Jornal do Commercio. The institute also publishes the semiannual photography magazine Zum.

The Rio unit occupies the former Moreira Salles family house in Gávea, with gardens by Burle Marx; the house itself is a 1951 modernist project by Olavo Redig de Campos. Exhibitions, films and concerts are held there, and photography, music, literature and iconography collections are available for consultation. Access is via the Gávea neighborhood, near the botanical garden and the planetarium.

The organization publishes ZUM Magazine, focused on contemporary photography, and serrote, a quarterly journal featuring essays and intellectual discussions about art and culture. These publications bring works and ideas from artists and thinkers to readers who might not encounter them elsewhere.