| Acronym | Definition |
|---|
| CAI | Computer-Aided Instruction |
| CAI | Club Alpino Italiano |
| CAI | Computer Aided Instruction |
| CAI | Computer Assisted Instruction |
| CAI | Community Associations Institute |
| CAI | Cold Air Intake (automotive) |
| CAI | Central Asia Institute |
| CAI | Central American Indian (language) |
| CAI | Confederation of Aerial Industries (UK) |
| CAI | Controlled Auto-Ignition |
| CAI | Certified Auctioneers Institute |
| CAI | Common Air Interface (CT2 standard) |
| CAI | Center for Academic Integrity |
| CAI | Case Identification |
| CAI | Credit Agricole Indosuez |
| CAI | Cold Air Induction |
| CAI | Corporate Accountability International |
| CAI | Computer-Aided Inspection |
| CAI | Computer Aided Innovation |
| CAI | Carbonic Anhydrase Inhibitor |
| CAI | Centrale Antenne Inrichting (Dutch TV/Radio antenna company) |
| CAI | Commissione per le Adozioni Internazionali (Italian institute for international adoption) |
| CAI | Compression After Impact |
| CAI | Canadian Automotive Institute (Canada) |
| CAI | Club Atletico Independiente |
| CAI | Confederation of Australian Industry |
| CAI | Calcium Aluminum-rich Inclusion (mineralogy) |
| CAI | Container Applications International (US shipping container company) |
| CAI | Child Advocacy International |
| CAI | Cairo, Egypt - International (Airport Code) |
| CAI | Christian Associates International (religious group) |
| CAI | Cicatelli Associates Inc. |
| CAI | Consumer Association of Ireland |
| CAI | Chemical Accident/Incident |
| CAI | Composite Affordability Initiative (next-generation rotorcraft) |
| CAI | Compagnia Aeronautica Italiana |
| CAI | Centrale Allarme Interbancaria (Italian Institute for payment alarming) |
| CAI | Comisión de Asuntos Indígenas (Spanish: Commission of Indigenous Affairs) |
| CAI | Compliance Automation, Inc. |
| CAI | Corporate Affairs International |
| CAI | Call Assembly Index |
| CAI | Commercialization Achievement Index |
| CAI | Critical Application Item |
| CAI | Centralized Accident Investigation |
| CAI | Controlled Air Incinerator |
| CAI | Christian Assemblies International (Pentecostal Church) |
| CAI | Culinary Academy of India (Osmania University) |
| CAI | Communications, Avionics and Informatics |
| CAI | Computer Analog Input |
| CAI | Contractor Acceptance Inspection |
| CAI | Computer Applications Incorporated |
| CAI | Carcinogenic Activity Indicator |
| CAI | Child Aid International (Salem, MA) |
| CAI | Computer Aided Instructor |
| CAI | Cameron and Associates, Inc (Atlanta, GA) |
| CAI | Configuration Audit Inspection |
| CAI | Carbonic Anhydrase Isoenzymes I |
| CAI | Combined Arms Initiative |
| CAI | Congregation Agudath Israel |
| CAI | Cross-Assigned In |
| CAI | Cooperative Airborne Identification |
| CAI | Cerebral Atrophy Index |
| CAI | Completion of Availability Inspection (US Navy) |
| CAI | Computer Associates International, Incorporated |
| CAI | Central Approval Index |
| CAI | Construction Action Item |
| CAI | Concept Automation Incorporated |
| CAI | Curran Associates Inc (Red Hook, NY) |
| CAI | Counter Air Interdiction |
| CAI | Civil Aeronautics Institute |
| CAI | Clearing Account Indicator |
| CAI | Correos Acelerado International (International Express Mail; Mexico) |
| CAI | Customer Access Initiation |