Portugal

• Olival (Ourém), a civil parish in the municipality of Ourem
• Olival (Vila Nova de Gaia), a civil parish in the municipality of Vila Nova de Gaia

• Olival Basto (Odivelas), a civil parish in the municipality of Odivelas
  Odivelas Municipality
  Odivelas is a municipality located in the district of Lisbon in central Portugal, within the periphery of the city of Lisbon. Its total area is approximately 26.4 km², and encompasses a population of 143,995 inhabitants...