| Acronym | Definition |
|---|
| GTN➣Glyceryl Trinitrate |
| GTN➣Greater Talent Network (speakers bureau; New York, NY) |
| GTN➣Global Technology Network |
| GTN➣Germantown (Maryland) |
| GTN➣Global Transportation Network |
| GTN➣Gestational Trophoblastic Neoplasia |
| GTN➣Genetic Testing Network (National Health Service; UK) |
| GTN➣Global Training Network (WHO) |
| GTN➣Gross To Net |
| GTN➣Global Telescope Network (Sonoma State University) |
| GTN➣Government Telecommunications Network |
| GTN➣Global Trend Network |
| GTN➣Global Telecommunications Network (air traffic management) |
| GTN➣Galactic Trade Navy (game) |
| GTN➣Go Together Number (Bell Canada Reference) |
| GTN➣Geotrail Norge (Norwegian) |
| GTN➣Global Transaction Network (AT&T) |
| GTN➣General Television Network (Oak Park, Michigan) |