| Abbreviation | Definition |
|---|---|
| SNQ | Substantial New Question of Patentability |
| SNT | Show Not Tell |
| SNT | Supplemental Needs Trust |
| SNU | Safe Neighborhoods Unit |
| SNV | Season for Nonviolence |
| SO | Shoot Out |
| SOA | Society Of Assassins |
| SOA | The School Of Assassins |
| SOAR | Safe Online Adoption Registries |
| SOAR | Speak Out Against Rape |
| SOB | Sample Of Behavior |
| SODA | Status Offender Diversion Alternative |
| SOE | Strippers Of Evil |
| SOF | Statement Of Fact |
| SOIRA | Sex Offender Information Registration Act |
| SOJ | Shadows Of Justice |
| SOL | Stark Out of Luck |
| SOLVE | Safe Orderly Legal Visas and Enforcement |
| SOPA | Stop Online Piracy Act |
| SOR | Sex Offender Registry |