| Acronym | Definition |
|---|
| CIA | Central Intelligence Agency (US government) |
| CIA | Compañía (Spanish: Company) |
| CIA | Companhia (Portuguese: company) |
| CIA | Certified Internal Auditor |
| CIA | Culinary Institute of America (Hyde Park, New York) |
| CIA | Confederazione Italiana Agricoltori (Rome, Italy) |
| CiA | CAN in Automation |
| CIA | Chemical Industries Association (UK) |
| CIA | Cooperative Information Agents (Prague, Czech Republic workshop) |
| CIA | Caught in the Act (band) |
| CIA | Cleveland Institute of Art |
| CIA | Comrades In Arms (gaming clan) |
| CIA | Confidentiality, Integrity and Availability (information security) |
| CIA | Collagen-Induced Arthritis |
| CIA | Criminals in Action (song) |
| CIA | Cardiff International Arena (UK) |
| CIA | Cash In Advance |
| CIA | Canadian Institute of Actuaries |
| CIA | Centre International d'Antibes (language school) |
| CIA | Corporate Integrity Agreement |
| CIA | Christians In Action |
| CIA | Calgary International Airport |
| CIA | Community Impact Assessment |
| CIA | Chief Internal Auditor |
| CIA | Center for Icelandic Art |
| CIA | Christmas In April |
| CIA | Commissioner of Indian Affairs |
| CIA | Complex Interface Adapter (Commodore) |
| CIA | Cámara Inmobiliaria Argentina (Argentina) |
| CIA | Christ In Action (Manassas, Virginia) |
| CIA | Christ Is Alive (t-shirt) |
| CIA | Celestial Intervention Agency (Doctor Who) |
| CIA | Concrete Institute of Australia |
| CIA | Common Iliac Artery |
| CIA | Rome, Italy - Ciampino (Airport Code) |
| CIA | Chemiluminescence Immunoassay |
| CIA | Community Improvement Association |
| CIA | Classical IP over ATM (Sprint) |
| CIA | Current Instruction Address |
| CIA | Captured In Action |
| CIA | Coleambally Irrigation Area |
| CIA | California Institute of AbnormalArts (North Hollywood, CA) |
| CIA | Colorado Institute of Art |
| CIA | Cosmic Internet Academy |
| CIA | Computer Industry Almanac, Inc. |
| CIA | Center for Information Assurance |
| CIA | Collegium Internationale Allergologicum (Milwaukee, WI, USA) |
| CIA | Council for Independent Archaeology (UK) |
| CIA | Carry It Anywhere (Taurus International firearms) |
| CIA | Conseillers en Informatique d'Affaires |
| CIA | Commandos in Action (gaming clan) |
| CIA | Central Intelligence Access (WordPerfect) |
| CIA | Completely Insane Anteaters (University of California Irvine athletics) |
| CIA | Comprehensive Individual Assessment |
| CIA | Circuitos Integrados Analogicos (Mexico) |
| CIA | Correctional Industries Association |
| CIA | Community Impact Analysis |
| CIA | Commission Internationale d'Aerostation (FAI Ballooning Commission) |
| CIA | Carnegie Involvement Association |
| CIA | Change Impact Assessment |
| CIA | Centre d'Insémination Artificielle |
| CIA | Consumer Information Act |
| CIA | Commercial Industrial Agricultural |
| CIA | Controlled Industrial Area |
| CIA | Confidentiality, Integrity, Authenticity |
| CIA | Cheers in Advance |
| CIA | Cooking Institute of America |
| CIA | Combat Infantrymen's Association (Boynton Beach, Florida) |
| CIA | Cryptographic Information Application |
| CIA | Charitable Immunity Act |
| CIA | Cost Impact Analysis |
| CIA | Clinical Interventions in Aging |
| CIA | Computer Interface Adapter |
| CIA | Creative Investors Association |
| CIA | Cosmic Intelligence Agency |
| CIA | Catalina Island Airport |
| CIA | Circumcision Information Australia |
| CIA | Citizens Information Academy (Estes Park, Colorado) |
| CIA | Cumulative Impact Area |
| CIA | Canadian International Autoshow |
| CIA | Commission of Internal Affairs |
| CIA | Canadian Infantry Association |
| CIA | Computer-Integrated Agriculture |
| CIA | California Intermodal Associates (Los Angeles, CA) |
| CIA | Cedartown Insurance Agency |
| CIA | Control Interface Assembly |
| CIA | Calling Subscriber Internet Address |
| CIA | California International Airshow |
| CIA | Customer Interaction Agent |
| CIA | Central Inhibitory Area (neuroscience) |
| CIA | Call Initiate Answer |
| CIA | Cisco Intelligent Agents |
| CIA | Channels of the Internet Age |
| CIA | Containment Isolation Actuation |
| CIA | Chemical Institute of Australia |
| CIA | Cobb Institute of Archeology |
| CIA | Clay in Action (Aims Community College, Colorado pottery club) |
| CIA | Caisse de Prévoyance des Instituteurs et Administrateurs du République et Canton |
| CIA | cloud interstitial aerosol |
| CIA | Control Indicator Assembly |
| CIA | Cotton Insurance Association |
| CIA | Conventions Industry Association |
| CIA | Chemotaxis-Induced Aggregation |
| CIA | Computer Information Advisors |
| CIA | Centre International des Alliances (Quimper, France) |
| CIA | Clinical Investigator Agreement |
| CIA | Central Illinois Ag (agricultural equipment company) |
| CIA | Common Interface Arrangement |
| CIA | Computer Information Agency |