| Abbreviation | Definition |
|---|---|
| SABR | Soccer Association of Boca Raton |
| SAC | Soccer Association of Columbia |
| SACSC | Southern Arizona Cardinal Soccer Club |
| SAGE | Soccer And Gambling Exchange |
| SASA | Saline Area Soccer Association |
| SASA | San Angelo Soccer Association |
| SASA | San Antonio Soccer Association |
| SASA | South Alabama Soccer Association |
| SASA | Springfield Area Soccer Association |
| SASC | Sandhills Area Soccer Club |
| SASC | Santa Anita Soccer Club |
| SASC | Sunnyvale Alliance Soccer Club |
| SASL | Sacramento Adult Soccer League |
| SASL | Sanford Area Soccer League |
| SASL | South African Soccer League |
| SBSA | South Bay Soccer Association |
| SBSC | Sound Beach Soccer Club |
| SCOR | Soccer Club of Ridgefield |
| SCOR | Soccer Club of Rockford |
| SCSA | Sedgwick County Soccer Association |