| Acronym | Meaning |
| CDP | Compressor Discharge Pressure |
| CDPL | Compressor Discharge Pressure Left Engine |
| CDPR | Compressor Discharge Pressure Right Engine |
| CDR | Critical Design Review |
| CDRL | Contractor Data Requirements List |
| CDT | Chargeable Down Time |
| CDT | Compressor Discharge Temperature |
| CDU | Control Display Unit |
| CDWG | Controls And Displays Working Group |
| CEB | Cno Executive Board |
| CECM | Composite Engineering Change Memo |
| CECOM | Communications & Electronics Command (army) |
| CEP | Circular Error Probable |
| CEPA | Cleanroom Engineering Process Assistant |
| CESM | Cryptologic Electronic Warfare Support Measures |
| CETS | Contractor Engineering And Technical Services |
| CFA | Cognizant Field Activity |
| CFCTS | Contract Flight Crew Training System |
| CFE | Contractor Furnished Equipment |
| CFET | Centrifuge-based Flight Environment Trainer |
| CFI | Contractor Final Inspection |
| CFO | Cognizant Field Office |
| CFS | Contract Field Services |
| CFT | Contractor Flight Test |
| CG | Center Of Gravity |
| CG | Guided Missile Cruiser |
| CGM | Computer Graphics Metafile |
| CGN | Guided Missile Cruiser (nuclear Propulsion) |
| CGO | Cargo |
| CHAFFROC | Chaff Dispensing Rocket |
| CHAN | Channel |
| CHG | Change |
| CHIPE | Oil Particle Exceedances |
| CHIPL | Oil Particle Count Large |
| CHIPT | Oil Particle Count Total |
| CHK | Check Or Checkout |
| CHMS | Copilot Helmet Sight System |
| CHURCH-EYE | Over-the-horizon Radar |
| CI | Configuration Item |
| CIA | Change Impact Assessment |
| CIC | Central Integrated Checkout |
| CIC | Combat Information Center |
| CICA | Competition In Contracting Act |
| CICPP | Central Integrated Checkout Program Plan |
| CIDS | Critical Item Development Specification |
| CIM | Center For Information Management |
| CIM | Computer Integrated Manufacturing |
| CIM | Corporate Information Management |
| CINCLANTFLT | Commander-in-chief (atlantic Fleet) |
| CINCPACFLT | Commander-in-chief (pacific Fleet) |