- CAPB stands for Central Auditory Processing Battery
- CAPB stands for Cyclically Adjusted Primary Balance (economics)
- CAPB stands for Club Amatori Pastore Belga (Italian: Amateur Belgian Shepherd Club)
- CAPB stands for Cancer of the Prostate and Brain (urology)
- CAPB stands for Curriculum and Assessment Policy Branch
- CAPB stands for County Agricultural Preservation Board (St. Joseph County, MI)
- CAPB stands for Clinical Applications and Prevention Branch
CAPB