Aveiro

Aveiro may refer to:
 * Aveiro, Pará, a municipality in Brazil
 * Aveiro, Portugal, a city and municipality in Portugal
 * Região de Aveiro, surrounding the city above
 * Aveiro District, surrounding the municipality above
 * Roman Catholic Diocese of Aveiro, surrounding the city above
 * Aveiro Lagoon (Ria de Aveiro), near the city above
 * Aveiro Light, at the entrance to the lagoon above

People

 * Dukes of Aveiro, an aristocratic Portuguese title, granted in 1535
 * Cristiano Ronaldo dos Santos Aveiro (born 1985), Portuguese footballer
 * Kátia Aveiro (born 1977), Portuguese singer
 * José Aveiro (born 1936), Paraguayan footballer