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

• 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

This disambiguation page lists articles associated with the title Aveiro.
If an internal link led you here, you may wish to change the link to point directly to the intended article.