| Acronym | Definition |
|---|
| TDAG➣Terminal Dues Action Group (Universal Postal Union) |
| TDAG➣Tourism Development Alliance of Georgia (est. 2002) |
| TDAG➣Telecommunication Development Advisory Group |
| TDAG➣Technical Design Authority Group (National Library for Health; UK) |
| TDAG➣The Delphi Advocacy Group (software) |