The São Paulo Municipal Symphony Orchestra, also known as OSM, is one of the artistic bodies of the Municipal Theater of São Paulo. Currently under the direction of Roberto Minczuk, it performs in operas and concerts, often with guest soloists and other artistic ensembles such as the São Paulo Municipal Lyric Choir and the São Paulo City Ballet.

Municipal Theatre of São Paulo is a theatre in São Paulo, Brazil. It is regarded as one of the landmarks of the city, significant both for its architectural value as well as for its historical importance, having been the venue for the Week of Modern Art in 1922, which revolutionised the arts in Brazil. The building now houses the São Paulo Municipal Symphonic Orchestra, the Coral Lírico and the City Ballet of São Paulo.