| Acronym | Definition |
|---|
| TGIS➣Thank God It's Sunday |
| TGIS➣Transportation Geospatial Information System (US Army) |
| TGIS➣Thank God It's Sabado (Philippine TV series in the 1990s) |
| TGIS➣Temporal Geographical Information Systems |
| TGIS➣Thank God It's Saturday |
| TGIS➣Thank God I'm Single |