| Abbreviation | Definition |
|---|---|
| CHEMCAS | Chemical Casualties |
| CHEMSIM | Chemical Simulation |
| CHENS | Chemical Explosives Neutralizer System |
| CHESS | Computer Hardware, Enterprise Software and Solutions |
| CHET | Commercial Heavy Equipment Transporter |
| CHET | Customs High Endurance Tracker |
| CHIP | Continuous Human Improvising Process |
| CHIRP | Commercially Hosted InfraRed Payload |
| CHM | Company Havildar Major |
| CHO | Chemical Hygiene Officer |
| CHOJ | Correlation Home on Jam |
| CHOP | CHange of OPerational control |
| CHOP | Change Operational Control |
| CHPC | Center For High Performance Computing |
| CHPPM | United States Army Center for Health Promotion and Preventive Medicine |
| CHPS | Combat Hybrid Power System |
| CHR | Can Hear Rockets |
| CHR | Communication History Report |
| CHRA | Civilian Human Resources Agency |
| CHRA-E | Civilian Human Resources Agency - European Region |