| 0DG | Zero Degrees Parallel | |
| AAGIS | Ann Arbor Geographic Information System | |
| AAI | American Avalanche Institute | |
| AF | Alluvial Fan | |
| AGIO | Arkansas Geographic Information Office | |
| AGIS | Albuquerque Geographic Information System | |
| AGIS | Airports Geographic Information Systems | |
| AGIS | Abuja Geographic Information Systems | |
| AGS | Applied Geographic Solutions | |
| AGS | American Geographical Society | |
| AGTI | Association of Geography Teachers of Ireland | |
| AGTI | Association of Geography Teachers in Ireland | |
| AIMS | Aid Information Mapping Services | |
| ANWS | Atlantic Named Windstorm | |
| AP | Asian Power | |
| APHG | AP Human Geography | |
| APHG | A P Human Geography | |
| BBDO | Bringing Biogeographic Data Online | |
| BGG | Biology Geography and Geology | |
| BGN | Board on Geographic Names | |
| BGSG | Business Geography Specialty Group | |
| BOLTS | Border, Orientation, Legend, Title, Scale | |
| BST | British Summer Time | |
| BUMPER | Bounce Mapper | |
| CBI | City Building Institute | |
