Oeiras

Oeiras may refer to:

Places

Brazil

• Oeiras, Piauí, a municipality in the State of Piauí
• Oeiras do Pará, Pará, a municipality in the State of Pará

Portugal

• Oeiras, Portugal, a municipality in the district of Lisbon
• Oeiras e São Julião da Barra, a former civil parish in the municipality of Oeiras
• Oeiras e São Julião da Barra, Paço de Arcos e Caxias, successor of the above