| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 6 | KATIE KISSINGER | Master | English | All |
| 0 | SYLVIA LEEANN KITTERMAN | Master | English | All |
| 0 | Holly Victoria Klein | Master | English | All |
| 0 | LEAH RUTH KNOKE | Community | English | Crook, Deschutes, Jefferson |
| 0 | SAMANTHA KNOUSE | Community | English | All |
| 11 | Lena Colleen Ko | Master | English | All |
| 1 | Angela C Koehler | Master | English | Clackamas |
| 0 | BRENDA ELIZABETH KOEHLER | Master | English | Clackamas, Multnomah |
| 6 | ERIN KOST | Master | English | All |
| 0 | KAREN JOAN KRAEMER | Community | English | Clackamas, Clatsop, Hood River, Multnomah, Washington |
| 0 | BreAnna Rashawn Krawczyk | Community | English | Josephine |
| 0 | KAREN JO KREITZER | Master | English | Clackamas, Marion |
| 0 | SUSY IVONNE KRISTIN | Community | Spanish | Clackamas, Columbia, Grant, Hood River, Jackson, Klamath, Lake, Marion, Multnomah, Tillamook, Wasco, Yamhill |
| 0 | Kim B Kurin | Community | English | Clackamas, Multnomah, Washington |
| 0 | MARSHA DENISE LA VERNE | Master | English | All |
| 30 | CAROL LAGANO MCMURDIE | Master | English | All |
| 0 | Chad Michael Lahr | Master | English | All |
| 5 | DEBORAH E LAIMON | Master | English | All |
| 7 | Maria Lorraine Lyn Laine | Master | English | Linn, Marion, Polk, Yamhill |
| 0 | SUZANNE REBECCA LAMOUREUX | Standardized | English | Lane |