| Califórnia Building | |
| Native Name: | Edifício e Galeria Califórnia |
| Map Type: | Brazil São Paulo City#Brazil |
| Architectural Style: | Modernism |
| Address: | Rua Dom José de Barros 67, República, São Paulo |
| Location Town: | --> |
| Coordinates: | -23.5449°N -46.6413°W |
| Groundbreaking Date: | 1951 |
| Opened Date: | 1955 |
| Destruction Date: | --> |
| Floor Count: | 13 |
| Floor Area: | 15548m2 |
| Elevator Count: | 4 |
| Grounds Area: | 286m2 |
| Architect: | Oscar Niemeyer, Carlos Lemos |
| Unit Count: | --> |
The Califórnia Building (Portuguese: Edifício e Galeria Califórnia, also Edifício Califórnia) is a mixed-use building in the República district of São Paulo, Brazil. It was designed by the architect Oscar Niemeyer (1907–2012) with Carlos Lemos (born 1925). The building was designed in 1951 and completed in 1955. The Califórnia Building combined a gallery of retail space on its ground floor with residential units above, a theme common to Niemeyer's nearby Copan and Eiffel buildings. It sits on the corner of Barão de Itapetininga and Dom José de Barros avenues.