Palácio Rio Branco, Government palace in Ribeirão Preto, Brazil.

The Palácio Rio Branco is a government building in Ribeirão Preto that displays a facade combining baroque and modern elements, including rounded contours and floral motifs in its carvings and exterior paintwork. The building serves as the seat of the Mayor and several city administration departments.

Originally called Paço Municipal, the building was commissioned by mayor Joaquim Macedo Bitencourt, and its cornerstone was laid on 3 August 1915. It was inaugurated on 26 May 1917 at a cost of Rs 174:801$800, serving as Ribeirão Preto's city hall. A 1992 renovation replaced all the woodwork and modernized the plumbing and electrical network.

The building was originally named Paço Municipal and only later took the name Rio Branco, after the square where it stands, Praça Barão do Rio Branco. Since the city hall moved out, it has housed Ribeirão Preto's Municipal Secretariat of Culture and Tourism, so the former administrative seat now serves cultural functions.

The building stands on Praça Barão do Rio Branco, in the city centre, and today houses the Municipal Secretariat of Culture and Tourism. Visits are therefore tied to the working hours of that secretariat; check locally before going, since the rooms serve administrative offices rather than a museum circuit.

In 1992, the building underwent a comprehensive renovation in which all woodwork was replaced and plumbing and electrical systems were modernized. Despite these technical updates, the structure retained its original architectural appearance.