CPM
- CP/M
- CPM (gene)
- Carboxypeptidase M
- Cellular Potts model
- Central Park Media
- Central pontine myelinolysis
- Certified Property Manager
- Certified Public Manager
- Certified practising marketer
- Challenge ProMode Arena
- Chicago Public Media
- Chinese patent medicine
- Chlorphenamine
- Chosen People Ministries
- Church planting
- Clement Payne Movement
- Clique percolation method
- Coalition for Melilla
- Colonial Police Medal
- Communication privacy management theory
- Communications Processor Module
- Communist Party of India (Marxist)
- Communist Party of Malaya
- Compressed pattern matching
- Compton/Woodley Airport
- Confined placental mosaicism
- Content Planning Module
- Continuous passive motion
- Continuous phase modulation
- Cost per impression
- Cost per mille
- Counts per minute
- Critical path method
- Crucible Industries
- Cucurbit powdery mildew
- Cyclopropylmescaline
- Fathers of Mercy
- Midwife
- Party of Communists of the Republic of Moldova
- The Pentecostal Mission