| Abbreviation | Definition |
|---|---|
| SCM | Security Countermeasure |
| SCM | Service Container Manager |
| SCM | Software Configuration Management |
| SCM | Software Cost Model |
| SCMA | Southern California Military Academy |
| SCMD | South Carolina Military Department |
| SCMODS | State County Municipal Offender Data System |
| SCMP | Software Configuration Management Plan |
| SCMP | Strategic Command, Control, and Communications (C3) Master Plan |
| SCMS | Summary Court Martial and Shot |
| SCN | Ship Conversion, Navy |
| SCN | Specification Change Notice |
| SCN | System Change Number |
| SCN | System Control Network |
| SCNE | Self-Contained Navigation Equipment |
| SCNL | Super-Critically Needed Language |
| SCO | Secondary Control Officer |
| SCO | Security Cooperation Organization |
| SCO | Senior Contracting Official |
| SCO | State Coordinating Officer |