| Abbreviation | Definition |
|---|---|
| TDHC | The Doctors Healthcare Company |
| TDI | Technical Diving International |
| TDI | True Data India |
| TDIC | The Dentists Insurance Company |
| TDII | True Data India - International |
| TDIT | Toronto Dominion Information Technology |
| TDJ | Taylor- DeJongh |
| TDJG | TopDJGear |
| TDK | The Death Knights |
| TDK | Tokyo Denki Kagaku |
| TDL | The Diamond Lane |
| TDL | Tokyo Disney Land |
| TDL | Tokyo Disneyland |
| TDL | Tulip Development Laboratory |
| TDL | Turfgrass Diagnostic Laboratory |
| TDMC | Taylor- Dunn Manufacturing Company |
| TDMC | Textile Designed Machine Company |
| TDMI | Thomas D Morris Incorporated |
| TDML | Trilogic Digital Media Limited |
| TDMS | Texas Document Management Service |