Mercantil Finasa Building, Commercial tower in Sé district, São Paulo, Brazil.

The Mercantil Finasa Building is an office tower at the corner of Rua Líbero Badaró and Vale do Anhangabaú in central São Paulo. It rises 129 metres, and its entrance on Líbero Badaró sits three floors above the level of the valley side. It has eight lifts and stands beside the Edifício Grande São Paulo, which reaches the same height.

The Mercantil Finasa was completed in January 1974, according to the Portuguese-language source; the Spanish-language source gives 1973. It stands on Rua Líbero Badaró at the edge of Vale do Anhangabaú, where the street entrance is three floors above the valley side. It is an office tower, and Exxon Mobil has kept a regional office there.

The tower is named Mercantil Finasa and houses offices of several companies, among them a regional office of Exxon Mobil. Its two entrances sit at different levels: the Rua Líbero Badaró side opens three floors above the Vale do Anhangabaú side, so visitors pass through the building on two street levels.

The building is located on Rua Libero Badaró in a busy commercial area with good public transit connections nearby. The surrounding streets are lively with foot traffic during business hours and easier to navigate outside peak times.

From the upper floors, views extend toward the Municipal Theatre and Vale do Anhangabaú valley, where older and newer sections of the city visually meet. This vantage point reveals how different periods of São Paulo's growth overlap within the same view.