| Acronym | Definition |
|---|
| TCDG➣Twin City Derby Girls (roller derby) |
| TCDG➣The Concept Design Group (Orlando, FL) |
| TCDG➣Toronto Catholic Doctors' Guild (Canada) |
| TCDG➣Triangle Chromatography Discussion Group |
| TCDG➣The Casting Directors Guild (UK) |
| TCDG➣Technical Competency Development Group (Digital Equipment Corporation) |