Portugal

• Barreiros (Amares), a civil parish in the municipality of Amares
• Barreiros (Mirando do Douro), a civil parish in the municipality of Miranda do Douro
  Miranda do Douro Municipality
  Miranda do Douro is a municipality covering an area of 487.17 km², with a population of approximately 7,707 inhabitants in the northeast corner of Portugal. Referred to as the "Cidade Museu" of the Trás-os-Montes region, it is located 86 kilometres from the district capital, preserving many...
  
  
• Barreiros (Valpaços), a civil parish in the municipality of Valpaços
• Barreiros (Viseu), a civil parish in the municipality of Viseu
  Viseu
  Viseu is both a city and a municipality in the Dão-Lafões Subregion of Centro Region, Portugal. The municipality, with an area of 507.1 km², has a population of 99,593 , and the city proper has 47,250...