CCR
- 2CR (disambiguation)
- Australian Research Council
- C-C motif receptor
- CCR S.A.
- CEAT Cricket Ratings
- CRR (disambiguation)
- California Code of Regulations
- Canada Central Railway
- Canadian Council for Refugees
- Cannabis and Cannabinoid Research
- Canonical commutation relation
- Carbon capture and storage
- Carbon catabolite repression
- Cardiocerebral resuscitation
- Cargo control room
- Catholic Charismatic Renewal
- Center for Cerebrovascular Research
- Center for Constitutional Rights
- Central City Rollergirls
- Central Contractor Registration
- Chandigarh Capital Region
- Change control
- Chelmsford City Racecourse
- Chemokine receptor
- ChuChu Rocket!
- Circus Circus Reno
- Cistercian College, Roscrea
- Citizens for a Canadian Republic
- Close Roll
- Cluster continuous replication
- Collective cabinet responsibility
- Colonial Christian Republic
- Coláiste Chríost Rí
- Combat Command
- Communität Casteller Ring
- Concord/Buchanan Field Airport
- Concurrency and Coordination Runtime
- Condition Code Register
- Constant current regulator
- Constitutional Court of Romania
- Consumer confidence report
- Continuity of Care Record
- Convict City Roller Derby League
- Corinth and Counce Railroad
- Corporate credit rating
- Court for Crown Cases Reserved
- Covenant (law)
- Creatinine clearance rate
- Creedence Clearwater Revisited
- Creedence Clearwater Revival
- Creedence Clearwater Revival (album)
- Cross Canadian Ragweed
- Crotonyl-CoA carboxylase/reductase
- Curly-coated retriever
- Handicap (golf)
- Institute for Defense Analyses
- Johnson–Corey–Chaykovsky reaction
- Koenigsegg CCR
- League for Catholic Counter-Reformation
- Northern Alberta Railways
- Oracle Database
- Ramsbottom carbon residue
- Rangpur Cadet College
- Rebreather
- Wangan Midnight