| Acronym | Definition |
|---|
| CIAA | Central Intercollegiate Athletic Association |
| CIAA | Confidentiality Integrity Availability and Accountability |
| CIAA | Computadora Industrial Abierta Argentina (Spanish: Argentine Open Industrial Computer) |
| CIAA | Office of the Coordinator of Inter-American Affairs (est. 1940) |
| CIAA | Conference on Implementation and Application of Automata |
| CIAA | Confédération des industries agro-alimentaires de l'UE (Confederation of the Food and Drink Industries of the EU, Brussels, Belgium) |
| CIAA | Confederation of Indian Amateur Astronomers |
| CIAA | Canadian Independent Adjusters' Association (International Federation of Adjusting Associations) |
| CIAA | Collections of Information Antipiracy Act (USA) |
| CIAA | Central Iowa Art Association (Marshalltown, Iowa) |
| CIAA | Central Iowa Apartment Alliance (West Des Moines, IA) |
| CIAA | Coalition for Innocent African Americans |