List of Government Acronyms: G
| Acronym | Agency/Organization/Definition |
| G-2 | Group of 2 |
| G-3 | Group of 3 |
| G-5 | Group of 5 |
| G-6 | Group of 6 (not to be confused with the Big Six) |
| G-7 | Group of 7 |
| G-8 | Group of 8 |
| G-9 | Group of 9 |
| G-10 | Group of 10 |
| G-11 | Group of 1 |
| G-15 | Group of 15 |
| G-19 | Group of 19 |
| G-24 | Group of 24 |
| G-30 | Group of 30 |
| G-33 | Group of 33 |
| G-77 | Group of 77 |
| GAO | Government Accountability Office, was the General Accounting Office |
| GATT | General Agreement on Tariffs and Trade |
| GCC | Gulf Cooperation Council |
| GIS | Geographic Information Systems |
| GDP | Gross Domestic Product |
| GDR | German Democratic Republic (East Germany); used for information dated before October 3, 1990 or CY91 |
| GNP | Gross National Product |
| GPO | Government Printing Office |
| GPS | Global Positioning System |
| GSA | General Services Administration |
| GSP | Gross State Product |
| GUUAM | acronym for member states - Georgia, Ukraine, Uzbekistan, Azerbaijan, and Moldova |
