Casa de Cultura Mario Quintana (CCMQ) is a cultural center in Porto Alegre, in the Brazilian state of Rio Grande do Sul.

Among its renowned guests were former presidents Getúlio Vargas and João Goulart and artists such as Vicente Celestino, Virgínia Lane [pt] and Francisco Alves.

Conceived to occupy both sides of the Araújo Ribeiro Passage, it has two blocks linked by large walkways connected to the ground by arcades and containing terraces, balconies and columns.

The hotel entered into decline, cutting the number of guest rooms from 300 to 100, and began to house people on a permanent basis, including Mário Quintana,.

[1] The property, which belongs to the state of Rio Grande do Sul, has a wide variety of cultural spaces, such as the Lucília Minssen Library, the Érico Veríssimo Library, part of the Museum of Contemporary Art of Rio Grande do Sul, the Elis Regina and Mário Quintana collections, the Natho Henn public record collection, the Xico Stockinger and Sotéro Cosme galleries, the Bruno Kiefer and Carlos Carvalho theaters, in addition to three movie theaters, cafés, bombonière, bookstore and several rooms for specific purposes or multiple uses.