| Abbreviation | Definition |
|---|---|
| SMART | Speed Monitoring Awareness Radar Trailer |
| SMART | Stop More Alcohol Related Tragedies |
| SMART | Stop Motorcrime And Ring Today |
| SMC | Seattle Mechanical Code |
| SMC | Small Man Can |
| SMDA | Safe Medical Device Act |
| SMI | Serious Mental Illness |
| SMI | Seriously Mentally Impaired |
| SMI | Severe Mental Illness |
| SMILE | Safety Magic In Law Enforcement |
| SMLS | Southern Migrant Legal Services |
| SMLS | Springvale Monash Legal Service |
| SMPI | Statutory Money Purchase Illustrations |
| SMT | Sadistic Mulder Torture |
| SNAP | Safe Neighborhood Awareness Program |
| SNAP | Suddenly Nasty And Aggressive Personality |
| SNARK | Special Nude Arterial Repeat Killer |
| SNJ | Schools Not Jails |
| SNO | Senior Neighborhood Officer |
| SNO | Snow |