| Name | Type | Language | Counties |
|---|---|---|---|
| DENNIS EUGENE SIBILIA-YOUNG | Community | English, Spanish | Benton, Clackamas, Clatsop, Coos, Deschutes, Douglas, Jefferson, Klamath, Lane, Lincoln, Linn |
| KATHY GALE SIEMER | Standardized | English | Coos, Curry |
| HEIDA SIGURDARDOTTIR | Community | English | Lane |
| Michele Silence | Community | English | All |
| FLOR DE MARIA SILVA GUTIERREZ | Master | English, Spanish | Washington |
| Merry Lynn Silver | Not given | English | Marion |
| Candy Denise Silvers | Not given | English | Clackamas |
| Heather Lynn Simmons | Master | English | All |
| Evghenia Sincariuc | Master | English, Russian, Other | All |
| LINDA SINCLAIR | Standardized | English | Washington |