UIA
UIA is:
- The name of a narrow valley and a bay in Fatu Hiva in the Marquesas
- An abbreviation for: Ukraine International Airlines, a Ukrainian airline
- Union Internationale des Avocats, an international law association
- Union of International Associations, a non-governmental organization based in Brussels
- International Union of Architects, International Union of Architects, based in Paris
- Universidad Iberoamericana, Mexico Private University
- Universitetet i Agder, Agder University in Norway
- Disambiguation
- Abbreviation