Aia is a small town in the province of Gipuzkoa, Spain.
AIA or A.I.A. or Aia may also refer to:
Aia
- Peñas de Aya, small mountain range in Oiartzun, Gipuzkoa
- Aia, current Kutaisi, ancient capital of Colchis
- Aia, another name for Aea (Malis), an ancient town in Greece
- Aia, the collected edition of E. C. Vivian's 1920s novels Fields of Sleep and People of the Darkness
- Saint Aia (died c. 711), Belgian Catholic saint also known as Aye
- Aia (plant), a genus of plants containing a single species, Aia tseui
Academia
Statutes and treaties
Aerospace
Airports
- Accra International Airport, in Accra, Ghana
- Adelaide International Airport, in Adelaide, Australia
- Alliance Municipal Airport in Alliance, Nebraska, United States (IATA Code: AIA)
- Asuncion International Airport, in Asuncion, Paraguay
- Athens International Airport, in Athens, Greece
- Auckland International Airport in Auckland, New Zealand
- Auckland International Airport Limited (stock symbol AIA)
Sport and entertainment
Business
Technology and engineering
Professional bodies and qualifications
Other
See also