| Abbreviation | Definition |
|---|---|
| RWJ | Robert Wood Johnson |
| RWS | Richard W. Sears |
| RWS | Rider Waite Smith |
| RY | Robert Young |
| S | Santa |
| S | Schottenheimer |
| S | Socrates |
| S | Straus |
| S | Superman |
| SA | Stanley Arthur |
| SAB | Steve A. Baker |
| SAIMA | Saima Khan |
| SAM | Susan Allen Morgan |
| SB | Sandra Brown |
| SB | Simon Birch |
| SB | Simon Blume |
| SB | Stephen Burke |
| SBG | Sant Bartomeu del Grau |
| SC | Shepherd Clark |
| SC | Stanley Cohen |