| Acronym | Definition |
|---|
| CCNR➣Conseil Canadien des Normes de la Radiotélévision (French: Canadian Broadcast Standards Council) |
| CCNR➣Central Catchment Nature Reserve (Singapore) |
| CCNR➣Canadian Coalition for Nuclear Responsibility |
| CCNR➣Central Commission for Navigation on the Rhine |
| CCNR➣Commission Centrale pour la Navigation du Rhin (French: Central Commission for Navigation on the Rhine) |
| CCNR➣Call Completion on No Reply (ISDN) |
| CCNR➣Call Completion No Reply |
| CCNR➣Connecticut Conference on Natural Resources |
| CCNR➣Canada Committee on Natural Resources |
| CCNR➣Copper Cliff Nickel Refinery (Ontario, Canada) |
| CCNR➣Conte Center for Neuroscience Research (Boston University; Boston, MA) |
| CCNR➣Center for Complex Network Research at Northeastern University |
| CCNR➣Completion of Call Not Responding (telecommunications) |