| Abbreviation | Definition |
|---|---|
| S | Steve |
| S | Susan |
| SAIMA | Sensible Admirable Intelligent Marks Achiver |
| SAIMA | Smart Adorable Impressive Meticulous Adept |
| SAIMA | Spectacular Attractive Intelligent Merciful Ambitious |
| SAL | Sally |
| SAL | Salvatore |
| SALK | Jonas Edward Salk |
| SALLY | Sarah |
| SAM | Samantha |
| SAM | Sarmad |
| SAMY | Sister Alma Mary Anderson |
| SANDY | Sandra |
| SAR | Shaikh Abdur Rahman |
| SARA | U.S.S. Saratoga |
| SB | Sussy Baka |
| SCAB | School Cleanup And Beautification |
| SCOOBY | Scooby-Doo |
| SCS | South China Sea |
| SD | Soldier's Daughter |