Aviation
- Advanced Aircraft, a company from Carlsbad, California
- Alaskan Air Command, a radar network
- American Aeronautical Corporation, a company from Port Washington, New York
- American Aviation, a company from Cleveland, Ohio
- Amphibian Airplanes of Canada, a company from Squamish, British Columbia
- El Arish International Airport's IATA code
- Civil Aviation Authority (El Salvador) (Autoridad de Aviación Civil)
- Civil Aviation Authority (Panama) (Autoridad Aeronáutica Civil)
Read more about this topic: AAC