Mazagão (Portuguese: Município de Mazagão, [mazɐˈɡɐ̃w]) is a municipality located in the south of the state of Amapá in Brazil. Its population is 22,053 and its area is 13,131 square kilometres (5,070 sq mi). Mazagão Velho located in the municipality of Mazagão is known for the Festival of São Tiago which takes place between 16 and 28 July, and re-enacts the war between the Moors and Christians.