Santo Antônio da Alegria is a municipality in the northern part of the state of São Paulo in Brazil.

The population is 6,977 (2020 est.)

in an area of 310.29 km².

[2] The elevation is 791 m. A neighboring municipality is São Sebastião do Paraíso in Minas Gerais to the northeast.

This geographical article relating to the state of São Paulo is a stub.