OSTS
| Acronym | Definition |
|---|---|
| OSTS | Oil Shale and Tar Sands |
| OSTS | Official Seed Testing Station (Scottish Agricultural Science Agency; Scotland, UK) |
| OSTS | On-Site Sewage Treatment Systems |
| OSTS | Old School Texas Surfing (Counter-Strike clan) |
| OSTS | Office of Storage and Transporation Systems |
| OSTS | Oscillation Stabilization Time Selection |