| STOPS | Santa Teresa Organization of Parents and Staff 
| Others |
| STOPS | Saskatchewan Towards Offering Partnership Solutions
| Others |
| STOPS | Shipboard Toxicological Operational Protective System
| Others |
| STOPS | Shipboard Toxicology Operational Protective System
| Others |
| STOPS | Simplified Trips on Project Software
| Others |
| STOPS | St Tammany Outreach for the Prevention of Suicide
| Others |