Caps
- All caps
- Auditory processing disorder
- CAPS (buffer)
- Calcyphosin
- Californians for Population Stabilization
- Cap
- Cap (disambiguation)
- Cap (sport)
- Capps (disambiguation)
- Caps (gamer)
- Caps (party)
- Caps, Texas
- Captive Animals Protection Society
- Cassini Plasma Spectrometer
- Catastrophic antiphospholipid syndrome
- Center for Advanced Public Safety
- Center for American Political Studies
- Center for Analysis and Prediction of Storms
- Chicago Alternative Policing Strategy
- Cirrus Airframe Parachute System
- Citizen Action Party – Sikkim
- Cleaved amplified polymorphic sequence
- Cognitive-affective personality system
- Comic Art Professional Society
- Computer Animation Production System
- Cryopyrin-associated periodic syndrome
- European Commission
- GCHQ
- Java Caps
- Policy Planning Staff (France)
- Raleigh IceCaps
- St. John's IceCaps
- Washington Capitals