Pilão Arcado is a municipality in the state of Bahia in the North-East region of Brazil.

Pilão Arcado was originally inhabited by indigenous people of the Mocoase and Acoroase ethnic groups.

War was declared between the families of Militão Plácido de França Antunes and Captain Bernardo José Guerreiro.

The conflict ended on August 1, 1848 with the death of the final adult son of the Guerreiro family.

Fighting between the families occurred in both Pilão Arcado and nearby Sento Sé.