| Abbreviation | Definition |
|---|---|
| SORD-PT | Soldier-Oriented Research and Development in personnel Performance & Training |
| SORD-PT | SORD in Personnel Performance & Training |
| SORT | Staff Organizations Round Table |
| SORTIEALOT | Sortie Allotment Message |
| SORTS | Status Of Resources and Training System |
| SOS | Save Our Sailors |
| SOS | Save Our Ship |
| SOS | Save Our Souls |
| SOS | Send Out Someone |
| SOS | Service Of Supply |
| SOS | Service Over Self |
| SOS | Shipments Of Spares |
| SOS | Slightly Off Specification |
| SOS | Son Of Spy |
| SOS | Special Operations Squadron |
| SOS | Support Our Soldiers |
| SOS | Support Our Station |
| SOS | System Of Systems |
| SOSA | Status Of Staff Actions |
| SOSB | Special Operations Support Battalion |