GTAS
| Acronym | Definition |
|---|---|
| GTAS | Governmentwide Treasury Account Symbol (US Treasury) |
| GTAS | Global Transfer Agency System (Atlantic Fund Services) |
| GTAS | Geo-Targeted Alerting System |
| GTAS | Grand Traverse Astronomical Society (Michigan) |
| GTAS | Golden Triangle Audubon Society (bird watching; Texas) |
| GTAS | Ground to Air Signal |
| GTAS | Gators Take A Stand |