| Abbreviation | Definition |
|---|---|
| SGML | Standard Generalized Markup Language |
| SGO | Silicon Graphics Onyx |
| SGO | Standard Garrison Organization |
| SGOC | Standard Garrison Organization Chart |
| SGS | Secondary Ground Station |
| SGS | Secretary, General Staff |
| SGS | Software Generation System |
| SGSA | Squadron Group Systems Advisor |
| SGT | Sergeant |
| SGTM(RET'D) | Sargeant Major (Retired) |
| SGTS | Second Generation Tank Sight |
| SGTS | Sergeants |
| SH | Schultzpolizei Hanover |
| SH | Ship Serviceman |
| SH | Short Horizontal |
| SH | Strength And Honor |
| SH1 | Ship Serviceman First Class |
| SH2 | Ship Serviceman Second Class |
| SH3 | Ship Serviceman Third Class |
| SHA | System Hazard Analysis |