Barra de Santo Antônio () is a municipality in the state of Alagoas in Brazil. The population is 16,068 (2020 est.)IBGE 2020 in an area of .Instituto Brasileiro de Geografia e Estatística The elevation is 10 m. It is situated on the Atlantic coast, northeast of Maceió.

External links citybrazil.com.br (in Portuguese)

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