| Abbreviation | Definition |
|---|---|
| CTR1 | Collection Cryptologic Technician First Class |
| CTR2 | Collection Cryptologic Technician Second Class |
| CTR3 | Collection Cryptologic Technician Third Class |
| CTRC | Chief Collection Cryptologic Technician |
| CTRCM | Master Chief Collection Cryptologic Technician |
| CTRCS | Senior Chief Collection Cryptologic Technician |
| CTRIF | Combating Terrorism Readiness Initiative Fund |
| CTRM | Critical Test Results Management |
| CTRSN | Collection Cryptologic Technician Seaman Striker |
| CTS | Change Tracking System |
| CTS | Combat Training Squadron |
| CTS | Commodity Tracking System |
| CTS | Common Targeting System |
| CTS | Conflict Tactic Scale |
| CTS | Contact Test Set |
| CTS | Cosmic Top Secret |
| CTS | Course To Steer |
| CTSD | Combat Training Support Directorate |
| CTSF | Central Technical Support Facility |
| CTSO | Chief Tactical Systems Officer |