| CC | Cross Cutting | - | Chatting Acronyms |
| CC | Closed Cup (Flash Point Test Method) | - | Computer Acronyms(common) |
| CC | Close Coupling Method (for Atom-molecule Collisions) | - | Computer Acronyms(common) |
| CC | Combined Cycle | - | Computer Acronyms(common) |
| CC | Coupled Channel | - | Computer Acronyms(common) |
| CC | Coupled-cluster (quantum Calcn. Method) | - | Computer Acronyms(common) |
| CC | Carbon Copy | - | Computer and Internet |
| CC | Chief Complaint | - | Medical(slang) |
| CC | Carbon-Carbon | - | Organizations |
| CC | Channel Controller | - | Organizations |
| CC | Chief Counsel (KSC Directorate) | - | Organizations |
| CC | Communications Control | - | Organizations |
| CC | Cost Center | - | Organizations |
| CC | Crew Compartment | - | Organizations |
| CC | Crew(s) Certified | - | Organizations |
| CC | Many | - | Astronomy |
