CAP
- (ISC)²
- Apex Aircraft
- CAP (protein)
- CAP Group
- CAP Markets
- CAP S.A.
- CAP Scientific
- CAP code (disambiguation)
- CAP computer
- CAP theorem
- CAPPE (disambiguation)
- Camel Application Part
- Canada Assistance Plan
- Canadian Action Party
- Canadian Association of Physicists
- Capital Airlines (United States)
- Capital Assistance Program
- Capp (disambiguation)
- Carlos Andrés Pérez
- Carrierless amplitude phase modulation
- Cascade AIDS Project
- Catabolite activator protein
- Causal adequacy principle
- Cellulose acetate phthalate
- Center for Adoption Policy
- Center for American Progress
- Central Arizona Project
- Central Atlanta Progress
- Central aortic pressure
- Chicago Area Project
- Child access prevention law
- Chip Authentication Program
- Christchurch Adventure Park
- Christian Appalachian Project
- Christians Against Poverty
- Church Action on Poverty
- Citizens' Action Party (disambiguation)
- Civil Air Patrol
- Coded Anti-Piracy
- Codice di Avviamento Postale
- College of American Pathologists
- Combat air patrol
- Combined Action Program
- Committee for Another Policy
- Committee of Advertising Practice
- Common Agricultural Policy
- Common Alerting Protocol
- Community Access Program
- Community Action Program
- Community Action Programme
- Community-acquired pneumonia
- Companhia Aeronáutica Paulista
- Companions and Pets Party
- Compound action potential
- Comprehensive Assessment Program for Junior High School Students
- Concerned Alumni of Princeton
- Confederation of African Pickleball
- Congress of Aboriginal Peoples
- Consolidated Appeals Process
- Copyright Agency Ltd
- Cumulative accuracy profile
- Estadio CAP
- German Climate Action Plan 2050
- International Association of Administrative Professionals
- International Society of Automation
- Taiwan