| Abbreviation | Definition |
|---|---|
| GOSD | Geography Of Service and Death |
| GPS | Geospatial World |
| GPW | Geospatial World |
| GSD | Geographical Security Database |
| GSDM | Geographic Spread Dynamic Multicast |
| GSIC | Geographic and Statistical Information Center |
| GSM | Geographic System For Mobile |
| GSRP | Geographic Search and Referencing Platform |
| GSS | Geographic Support System |
| GSS | Geographic Support Systems |
| GSS | Geography and Spatial Sciences |
| GTG | Geographic Technologies Group |
| GTO | Geographic Targeting Order |
| GTUB | geographic Tabulation Unit Base |
| GUD | Geographically Undesirable dating |
| HDI | Human Development Index |
| HIHWG | Hydrographic Information Harmonization Working Group |
| HR | Horizontal Rule |
| IARC | International Arctic Research Center |
| IBS | International Biogeography Society |