| Abbreviation | Definition |
|---|---|
| CTN | Certification TestNetwork NASA |
| C-TO-C | Computer-TO-Computer |
| CTOD | Crack Tip Opening Displacement |
| CTOF | Charge Time-Of-Flight |
| CTP | Communications Timing Procedure |
| CTP | Cyclic Time Processor |
| CTPD | Crew Training and Procedures Division |
| CTR | Canaveral Test Report |
| CTR | Consolidated Technical Review |
| CTRD | Computing Signed Translocation Distance |
| CTRS | Component Test Requirements Specification |
| CTS | Canadian Technology Satellite |
| CTS | Commercial To Space |
| CTS | Communications and Tracking System |
| CTS | Computer Test Set |
| CTS | Computerized Training System |
| CTSD | Computer Test Sequences Document |
| CTSD | Coordinate Transformation System |
| CTTB | Checkout Techniques Test Bed |
| CTU | Central Terminal Unit |