São Gonçalo do Piauí (first part, Portuguese meaning "San Goncalo of Piaui") is a municipality of the Brazilian state of Piauí.

It is located at an altitude of 270 meters.

The population is 5,030 (2020 est.)

[2] After a plebiscite held in 1995, part of the municipality was split off and became the municipality of Santo Antônio dos Milagres.

This Piauí, Brazil location article is a stub.