| Abbreviation | Definition |
|---|---|
| SCC | Steven Curtis Chapman |
| SCSA | Stone Cold Steve Austin |
| SD | Scooby Doo |
| SD | Senator Everett Dirksen |
| SD | Steve Dagley |
| SDY | S. Dilworth Young |
| SE | Shane Endicott |
| SFA | Stephen F. Austin |
| SFK | Stephen F. Kaufman |
| SFM | Stewart Finlay Mclennan |
| SFR | Samuel Fitzsimons Ravenel |
| SFT | Simon Fisher Turner |
| SFW | Sydney Fowler Wright |
| SG | Samuel Gordon |
| SG | Selena Gomez |
| SG | Space Ghost |
| SGK | Susan G. Komen |
| SGM | Sir George Martin |
| SGW | Sir George William |
| SH | Sherlock Holmes |