| Name | Type | Language | Counties |
|---|---|---|---|
| NATALIE CHRISTINE LO | Master | English | Coos |
| ROSIE LOCATI | Not given | English | Marion |
| BRUCE LOFLAND | Standardized | English | Columbia |
| MARGO LORETTA LOGAN | Community | English | Multnomah |
| Jamie Lea Loiland | Standardized | English | Baker, Gilliam, Grant, Hood River, Malheur, Morrow, Umatilla, Union, Wallowa, Wasco, Wheeler |
| MARY ANN LOILAND | Standardized | English | Morrow, Umatilla |
| Erin Michelle Lolich | Master | English | All |
| AMY ALISA LOMANTO | Master | English | All |
| AMBER DAWN LOMASCOLA | Master | English | All |
| IRENE M LONDRAVILLE | Not given | English | Washington |