| Abbreviation | Definition |
|---|---|
| RI | Rhode Island |
| RNV | Reno, Nevada |
| ROUS | rest of the United States |
| RSC | River States Conference |
| RSG | Reforming States Group |
| RTP | Research Triangle Park |
| S | South |
| SA | Santa Ana, California |
| SADEC | Southern African DEvelopment Community |
| SASA | State Agricultural Statistical Authority |
| SB | South Boston |
| SBC | San Benito County |
| SBC | San Bernardino County, California |
| SC | outh Carolina |
| SC | Santa Clarita, California |
| SC | South Carolina |
| SC | Southern California |
| SCF | State College of Florida |
| SCJ | Southern California Jurisdiction |
| SCOTUS | Supreme Court Of The Untided States |