CPH
- Arcata, California
- CPH railmotor
- California State Polytechnic University, Humboldt
- Castle Peak Hospital
- Champa Junction railway station
- Champagne Airlines
- Chronic paroxysmal hemicrania
- Chronic persistent hepatitis
- Cleveland Play House
- Communistische Partij Holland
- Concordia Publishing House
- Copenhagen
- Copenhagen Airport
- Cyclopentadiene