SSOS
| Acronym | Definition |
|---|---|
| SSOS | Solid State Organ Systems (Virginia and Pennsylvania) |
| SSOS | Single Source of Supply |
| SSOS | Samuel Smith Oatmeal Stout (drink) |
| SSOS | Short Stature-Obesity Syndrome |
| SSOS | Symphonic Soul of the South (Southern HS Marching Band) |
| SSOS | Sustainable Stand-Off Security |