| Abbreviation | Definition |
|---|---|
| CMG | Control Moment Gyroscope |
| CMGA | Control Moment Gyro Assembly |
| CMM | Condition Monitored Maintenance |
| CMN | CrewMaN |
| CMOS | Complementary Metal-Oxide Semiconductor |
| CMP | Contamination Monitor Package |
| CMPR | CoMPaRe |
| CMPRT | CoMPaRTment |
| CMPTD | CoMPuTeD |
| CMPTR | CoMPuTeR |
| CMPTRACTY | CoMPuTeR ACTivitY |
| CMR | Center Materials Representative |
| CMRB | Configuration Management Review Board |
| CMRB | Contractor Material Review Board |
| CMRR | Common Mode Rejection Ratio |
| CMS | Cambridge Monitoring System (Computer Program) |
| CMS | Command Management System |
| CMS | Competency Management System |
| CMS | Crew Module Adapter |
| CMSE | Command Management Systems Engineer |