CBR
- CBR (AM)
- CBR Building
- CBR Innovation Network
- CBR-FM
- CBR1
- CBR3
- CBU (AM)
- California bearing ratio
- Canberra
- Canberra Airport
- Canberra MRT station
- Cannabinoid receptor
- Captive bead ring
- Carpathian Biosphere Reserve
- Case-based reasoning
- Center for Bio-Ethical Reform
- Central Bank of Russia
- Central Board of Revenue
- Central benzodiazepine receptor
- Centre for Blood Research
- Championship Bull Riding
- Chemical, biological, radiological, and nuclear
- Chesapeake Bay Retriever
- Chesapeake Beach Railway
- Cleburne (Amtrak station)
- Comic Book Resources
- Community-based rehabilitation
- Confidence-based repetition
- Constant bitrate
- Constraint-based routing
- Content-based routing
- Cooksbridge railway station
- Cosmic background radiation
- Cost-benefit ratio
- Crash Bandicoot Racing
- Crude birth rate
- HeidelbergCement
- Honda CBR series