| Abbreviation | Definition |
|---|---|
| FZS | Frankfurt Zoological Society |
| GA | Geologists' Association |
| GAAS | Greater Akron Aquarium Society |
| GABCS | Gibsons Alliance of Business and Community Society |
| GAC | Association Géologique du Canada |
| GAC | Association Gologique du Canada |
| GAC | Geological Association of Canada |
| GACS | German American Cultural Society |
| GADS | Gosforth Amateur Dramatic Society |
| GAFS | Greek American Folklore Society |
| GAI | Geophysical Association of Ireland |
| GALAS | Gay And Lesbian Armenian Society |
| GAOS | Geneva Amateur Operatic Society |
| GAP | Gesellschaft fr Analytische Philosophie |
| GAP | Gesellschaft für Analytische Philosophie |
| GAP | Society for Analytical Philosophy |
| GARS | Gainesville Amateur Radio Society |
| GARS | Gibraltar Amateur Radio Society |
| GARS | Gwinnett Amateur Radio Society |
| GAS | ??????????? ???????????? ???????? |