| Acronym | Definition |
|---|
| CIAC | Computer Incident Advisory Capability (US Department of Energy) |
| CIAC | Computer Incident Advisory Capability |
| CIAC | Computer Incident Advisory Center |
| CIAC | Chemistry Industry Association of Canada |
| CIAC | Centre International d'Art Contemporain de Montréal |
| CIAC | Connecticut Interscholastic Athletic Conference |
| CIAC | Contributions In Aid of Construction |
| CIAC | Colorado Information Analysis Center |
| CIAC | Changchun Institute of Applied Chemistry (China) |
| CIAC | Comisión Interamericana de Arbitraje Comercial |
| CIAC | Commercial and Industrial Air Conditioning |
| CIAC | Cephalopod International Advisory Council |
| CIAC | Command Individual Augmentation Coordinator (US Navy) |
| CIAC | Council for Indigenous Arts and Culture |
| CIAC | China and Inner Asia Council |
| CIAC | Cambridge Independent Advice Centre (UK) |
| CIAC | Crime Information Analysis Centre (Zambia) |
| CIAC | Capital Improvement Advisory Committee |
| CIAC | California Intersegmental Articulation Council |
| CIAC | Critical Infrastructure Advisory Council |
| CIAC | Chinese Information & Advice Centre |
| CIAC | Construction Industry Advisory Council |
| CIAC | Catholic Institute Athletic Club (est. 1910) |
| CIAC | Coupon Industry Association of Canada |
| CIAC | Centro de Ingeniería Ambiental de Camagüey |
| CIAC | Ceramics Information Analysis Center (Purdue University) |
| CIAC | Carolinas Intercollegiate Athletic Conference |
| CIAC | Centro Internacional de Alta Capacitación |
| CIAC | Centro Integrado de Apoio à Criança |
| CIAC | Community Involvement and Action Center |
| CIAC | Contemporary Italian Arts and Cinema |
| CIAC | Congresso Internazionale di Archeologia Cristiana (Vatican City) |
| CIAC | Cost In Aid of Construction (Pacific Bell) |
| CIAC | Construction Industry Advisory Committee (UK) |
| CIAC | Callcenter Industry Advisory Council |
| CIAC | Career Information & Counseling |
| CIAC | Citizens Involvement Advisory Committee |
| CIAC | Corrections Industry Advisory Committee (Australia) |
| CIAC | Chibishounen Interdimensional Adoption Center |
| CIAC | Consorzio Industrie Alimentari Calabresi |
| CIAC | Crap in a Can |
| CIAC | Crab in A Cab (band) |
| CIAC | Código Internacional de Autoridad Contable |
| CIAC | Counter Intelligence Analysis Center |
| CIAC | Centralized Infrastructure and Computing |
| CIAC | Centro Internacional de Atención al Cliente |
| CIAC | Cheese in a Can |