| Abbreviation | Definition |
|---|---|
| TNHO | The New Hampshire Online |
| TNI | Texas Neurosciences Institute |
| TNI | Trans-National Institute |
| TNNLU | Tamil Nadu National Law University |
| TNOU | Tamil Nadu Open University |
| TNOU | Tamilnadu Open University |
| TNP | Texas NewsPaper |
| TNPC | Texas Newspaper Collection |
| TNSLPP | Tamil Nadu State Level Placement Programme (Anna University, India) |
| TNSU | Tennessee State University |
| TNU | Taejon National University |
| TNU | Thai Nguyen University |
| TNU | The Neotia University |
| TNU | The Network University |
| TNU | Trevecca Nazarene University |
| TNUA | Taipei National University of the Arts |
| TOC | Time Out of Class |
| TOE | Trial Of Entrance |
| TOEFL | Test Of English as a Foreign Language |
| TOEIC | Test Of English For International Communication |