| Abbreviation | Definition |
|---|---|
| GAS | Goal Attainment Scaling |
| GASI | General Agency For Specialized Inspection |
| GASL | General Applied Science Laboratory |
| GASP | Gentle Active Steady And Progressive |
| GASS | Generalized Activity Serial Scheduler |
| GAT | General Achievement Test |
| GAT | General Assessment Test |
| GAT | Good Attitude Thursday |
| GATC | General Academic Tutoring Center |
| GATE | Generic Analytical Technology for Enterprises |
| GATE | Growing America Through Entrepreneurship |
| GATS | General Agreement on Tariffs and Services |
| GATS | General Agreement on Trade and Services |
| GATS | General Agreements on Trade in Services |
| GATS | General Agrement On Tariffs And Services |
| GATT | General Agreement on Tariffs Tradition |
| GATT | General Agreement on Tarrifs and Trade |
| GAU | Graphic Arts Unit |
| GAZT | General Authority for Zakat and Tax |
| GAZT | General Authority of Zakat and Tax |