| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 1 | Lisa Teutsch | Master | English | Multnomah |
| 0 | GRETCHEN THIEL | Standardized | English | Jackson |
| 16 | TRUDY ANN THIERRY | Master | English | Clackamas, Columbia, Lane, Marion, Multnomah, Washington, Yamhill |
| 0 | BARBARA THOMAS | Standardized | English | Clackamas, Multnomah, Washington |
| 0 | NICHOLE MARIE THOMAS | Community | English | Jackson |
| 0 | SHAKITA NICOLE THOMAS | Master | English | Multnomah |
| 76 | Sonia Hites Thomas | Master | English | Baker, Benton, Clackamas, Clatsop, Columbia, Coos, Crook, Curry, Deschutes, Douglas, Gilliam, Grant, Harney, Hood River, Jackson, Jefferson, Josephine, Klamath, Lake, Lane, Lincoln, Linn, Malheur, Marion, Morrow, Multnomah, Polk, Sherman, Tillamook, Umatilla, Union, Wallowa, Wasco, Washington, Wheeler, Yamhill |
| 0 | CATHERINE LOUISE THOMPSON | Master | English | All |
| 0 | Colleen Comfort Thompson | Master | English | All |
| 0 | KATHY R. THOMPSON | Master | English | All |
| 1 | PATTY J. TIPTON | Specialty Community | English | Marion |
| 0 | MARIA DEL CARMEN TITUS | Standardized | English, Spanish | Washington |
| 7 | Laurie Lynne Todd | Master | English | Clackamas, Multnomah, Washington |
| 0 | JOYCE TOMBAUGH | Master | English | Clackamas, Multnomah, Washington |
| 0 | MICHELLE MARIE TONEY | Standardized | English | Clackamas, Multnomah, Washington, Yamhill |
| 6 | Dianice Marie Torrado | Master | English, Spanish | All |
| 0 | Ana Maria Tovar | Standardized | Spanish | Jackson |
| 0 | MONICA TOVAR | Standardized | Spanish | Multnomah, Washington |
| 17 | ALEXIS TRACY | Master | English | All |
| 0 | ALBA TRAIL | Standardized | English | Coos |
| 0 | CCRR Trainer | Standardized | Not given | All |
| 0 | JENNIFER A. TRAINOR | Standardized | English | Malheur |
| 0 | LINDA LEE TRAN | Standardized | English | All |
| 0 | THU-THUY THI TRAN | Not given | English | Marion |
| 11 | REBECCA KAY TREE | Master | English | All |
| 0 | David Michael Tremblay | Specialty Community | English | Crook, Deschutes, Jefferson |
| 0 | PAMELA TRENARY | Standardized | English | Clatsop |
| 0 | AIDALU TREVINO | Standardized | Marion | |
| 0 | LYNN M. TRICE | Master | English | Baker, Umatilla, Union |
| 4 | Jenifer Trivelli | Master | English | All |
| 0 | CHERYL TROSPER | Standardized | English | Multnomah |
| 3 | MAARJA TRUJILLO | Master | English, Spanish | Marion, Polk |
| 0 | Amber C Tucker | Master | English | Coos, Curry, Douglas, Lane |
| 16 | YELENA TUCKER | Master | English, Russian | All |
| 7 | Meredith Tufts | Master | English | Deschutes |
| 0 | Diane Lynn Turnbull | Standardized | English | Crook, Deschutes, Jefferson |
| 0 | Kimberlee Rae Turner | Master | English | All |
| 0 | TONI TURNER | Standardized | English | Deschutes |
| 0 | MELODY TUTTLE | Not given | English | Lane |
| 3 | Elizabeth Ruth Twombly | Master | English | All |
| 5 | Lisa Michelle Tynan | Master | English, Other | All |
| 0 | Jeanine Marie Tyrrell Owens | Not given | English | Clackamas |
| 15 | TOMMY LYNN UDELL | Master | English | All |
| 14 | Lisa Uhl | Master | English | Clackamas, Marion, Polk, Washington, Yamhill |
| 0 | KATIE JO ULREY | Community | English | Jackson |
| 2 | TAMARA DENISE ULRICH | Master | English | All |
| 0 | CHRISTINA B UNGA | Community | English | Multnomah |
| 0 | VERONICA VALLEJO | Not given | English | |
| 1 | MELISSA QUINN RATHBUN VAN BERGEN | Master | English | All |
| 30 | Renee Koehler Van Norman | Master | English | All |