Museu Internacional de Arte Naïf do Brasil, Naïve art museum in Cosme Velho, Rio de Janeiro, Brazil

The International Museum of Naïve Art of Brazil was an art museum in Rio de Janeiro focused on self-taught artists from around the world. The building in Cosme Velho displayed about 6,000 paintings and sculptures, including some of the largest works in this art form.

The museum opened in 1995 and spent two decades as a home for artists without academic training. It closed in 2016 due to financial difficulties after establishing itself as a major venue for this art form.

The museum gathered works by artists from over 100 countries, each bringing their own untrained perspective to art-making. These collections showed how people from different backgrounds saw their world and what they chose to paint.

The museum stood at Rua Cosme Velho 561, next door to the Corcovado train station, and was open Monday to Friday from 1 pm to 5 pm. It shut its doors on 23 December 2016 and has not reopened, so the building can only be seen from the street.

The museum's 6,000 paintings came from artists in 120 countries, brought together by French founder Lucien Finkelstein. His daughter Jacqueline directed the museum and said he died disillusioned by the lack of support for the project. After the closure on 23 December 2016, the plan was to transfer the works to the Rio de Janeiro state government.