| Abbreviation | Definition |
|---|---|
| SCE | Student Crisis Exercise |
| SCEUR | NATO Strategic Command, Europe |
| SCF | Sectional Center Facility |
| SCF(UK) | Save The Children Fund (United Kingdom) |
| SCF(US) | Save The Children Federation (United States) |
| SCG | Security Cooperation Guidance |
| SCG | Storage Compatibility Group |
| SCG | Switching Controller Group |
| SCI | Sensitive Compartmented Information |
| SCI | Space Counter - Intelligence |
| SCI | Special Compartmented Information |
| SCIF | Sensitive Compartmented Information Facility |
| SCIP | Supply Chain Integration Program |
| SCIPMIS | Standard Civilian Personnel Management Information System |
| SCITIS | Single Channel Transponder Injection System |
| SCL | SIDL Class List |
| SCL | Site Concurrence Letter |
| SCL | Standard Conventional Load |
| SCL | Stylis Competitive League |
| SCLANT | NATO Strategic Command, Atlantic |