São Pedro da Aldeia (Portuguese pronunciation: [sɐ̃w ˈpedɾu dɐwˈdejɐ]) is a municipality in Brazil.

[3] It lies in the east of Rio de Janeiro State on the Araruama Lagoon, 120 km from the state capital, Rio de Janeiro.

Sports like windsurfing, kitesurfing and others like these are common because of the wind force in São Pedro da Aldeia Salt extraction and fishing are the two most important industries.

Nowadays it is the main historical monument in the town and is protected by state laws.

In the 1960s the Brazilian Air Force and Navy built a military airport there, bringing many migrants from others parts of the country and increasing the town's population.