| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 14 | Nancy Leon | Master | English, Spanish | Clackamas, Multnomah, Washington |
| 0 | YESENIA LEON | Standardized | English, Spanish | All |
| 1 | Dianne E LeRoy | Master | English | Clackamas, Multnomah |
| 8 | LuRae Levering | Master | English | Clackamas, Multnomah, Washington |
| 0 | Joni R Levine | Master | English | All |
| 7 | Kaitlin Rose Lewallen | Master | English | All |
| 4 | HILLARY ROSS LEWIS | Master | English | All |
| 8 | Kianna Lewis | Master | English | All |
| 10 | MICHELLE KIRSTEN LEWIS-FANTINI | Master | English | All |
| 0 | CLAIRE LICHTENHELD | Master | English | Clackamas, Multnomah, Washington |
| 2 | Paige E Light | Master | English | All |
| 0 | Kimberly Ann Lindell | Master | English | All |
| 0 | AMY LIVINGSTON | Community | English | Clackamas, Marion, Multnomah, Washington, Yamhill |
| 1 | ROBIN Lynn LLOYD | Master | English | Clackamas, Multnomah, Washington |
| 9 | NATALIE CHRISTINE LO | Master | English | Coos, Curry |
| 0 | Jamie Lea Loiland | Standardized | English | Baker, Gilliam, Grant, Hood River, Malheur, Morrow, Umatilla, Union, Wallowa, Wasco, Wheeler |
| 45 | AMY ALISA LOMANTO | Master | English | All |
| 1 | Amber Dawn Lomascola | Master | English | All |
| 0 | KIMBERLY CRISS LONG | Master | English | Clackamas |
| 1 | Kristen (Kris) D Long | Master | English | Washington |