| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 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 |
| 7 | 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 |