| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 0 | DENNIS EUGENE SIBILIA-YOUNG | Community | English, Spanish | Benton, Clackamas, Clatsop, Coos, Deschutes, Douglas, Jefferson, Klamath, Lane, Lincoln, Linn |
| 0 | KATHY GALE SIEMER | Standardized | English | Coos, Curry |
| 0 | HEIDA SIGURDARDOTTIR | Community | English | Lane |
| 9 | Michele Silence | Community | English | All |
| 2 | FLOR DE MARIA SILVA GUTIERREZ | Master | English, Spanish | Washington |
| 0 | Merry Lynn Silver | Not given | English | Marion |
| 0 | Candy Denise Silvers | Not given | English | Clackamas |
| 0 | Heather Lynn Simmons | Master | English | All |
| 0 | Evghenia Sincariuc | Master | English, Russian, Other | All |
| 0 | LINDA SINCLAIR | Standardized | English | Washington |
| 0 | AMBER LILA SINGH | Community | English | Klamath |
| 0 | NICOLE ELAINE SINGLETON | Community | English | All |
| 0 | DEBORAH MARGARET SIPE | Standardized | English | Tillamook |
| 8 | Cherie C Skillings | Master | English | Crook, Deschutes, Jefferson, Lane |
| 0 | PATRICIA GALE SKINNER | Standardized | English | Clatsop |
| 0 | REBECCA ELAINE SKYLES | Community | English | Multnomah, Washington |
| 0 | Jennifer Ann Slater | Standardized | English | Douglas, Lane |
| 0 | MISTY MICHELLE SLATER | Standardized | English | Baker, Clackamas, Hood River, Lane, Multnomah, Umatilla, Union, Wallowa, Washington, Yamhill |
| 0 | Zoya Edwardovna Slatsky | Standardized | Douglas, Lane | |
| 8 | KRISTEN SLATT | Master | English | Gilliam, Grant, Harney, Hood River, Lane, Malheur, Morrow, Sherman, Umatilla, Union, Wallowa, Wasco, Wheeler |