| Abbreviation | Definition |
|---|---|
| SL | Small Letters |
| SL | Spot Light |
| SLAM | Sex, Love, And Marketing |
| SLAP | Sound Looks And Performance |
| SLBC | Sri Lanka Broadcasting Corporation |
| SLM | SeaLift Magazine |
| SLNTV | Somaliland National Television |
| SLOD | Suite Life On Deck |
| slowmo | Slow motion |
| SLP | Secret Love Poem |
| SLP | Six Line Poem |
| SLPD | St. Louis Post Dispatch |
| SLR | Single Lens Reflex |
| SLT | Strong Like Thunder |
| SLTRIB | The Salt Lake Tribune |
| SMA | Shadrach, Meschach, and Abednego |
| SMAC | SMAP Music Anniversary CD (Compact Disk) |
| SMAC | Synapse Media Admin Console |
| SMAP | Social Media Adaptation and Personalization |
| SMART | Sport Music And Real Talk |