| Abbreviation | Definition |
|---|---|
| CTTY | Changing To a Remote Terminal |
| CTU | Chandigarh Transport Undertaking |
| CTU | Central Terminal Unit |
| CTU | Central Timing Unit |
| CTV | Compatibility Test Van |
| CTVDR | Conformal Treatment Verification |
| CTW | IEEE Communications Theory Workshop |
| CTX | Clinical Trials Exemption |
| CTX | Corporate Trade Exchange |
| CU | Copper |
| CU | Call Unix |
| CU | Clinical Unit |
| CU | Cranial Ultrasound |
| CUA | Certified Unix Administrator |
| CUB | Commonality Usage Board |
| CUBIC | Chicago Universities Bioengineering Industry Conference |
| CUC | Computer Usage Control |
| CUCF | City University Construction Fund |
| CUD | Cause undetermined |
| CUD | Consistently Unproductive Daily |
| CUDS | Cumulative Data Statistics |
| CUE | Common Usage Equipment |
| CUF | Cross Utilization File |
| CUIL | Common Usage Item List |
| CUNP | Centre for United Nations Peacekeeping |
| CUO | Cadet Under-Officer |
| CUP | Curl Usability Productivity |
| CUP | Cancer of Unknown Primary |
| CUP | Copper Units Of Pressure |
| CUP | Common Underlying Proficiency |
| CUP | Commonality Usage Proposal |
| CUP | Conditional Use Permit |
| CUP | Cooperative Union of the Philippines |
| CUPA | Consolidated Unified Program Agency |
| CUPS | Consolidated Uniform Payroll System |
| CURE | Continuing Umbrella Of Research Experience |
| CURE | Cooperative Threat Reduction |
| CURSE | Clean Uncluttered Reverse Suspended And Elevated |
| CUS | Continental United States |
| CUSA | Certified Unix System Administrator |
| CV | Curriculum Vitae |
| Cv | Flow Coefficient |
| CV | Cardiac volume |
| CV | Cervical Vertebra |
| CV | Color Vision Test |
| CV | Cardiovascular |
| CV | Commissionable Volume |
| CV | Coefficient of Variation |
| CV | Deployable Payloads Operation |
| CV | Expendable Vehicles Operations |