| Abbreviation | Definition |
|---|---|
| GL | Geographic Location |
| GLC | Giant Lobby Card |
| GLO | General Land Office |
| GLOA | Gun Laws Of America |
| GLODAP | GLobal Ocean Data Analysis Project |
| GLP | good laboratory practices |
| GM | Generally Meaningless |
| GMDB | Guaranteed Minimum Death Benefits |
| GMI | Gross Monthly Income |
| GMOQ | Guaranteed Minimum Order Quantity |
| GMP | Good Manufacturing Practices |
| GMP | the Great Maritime Powers |
| GMP(s) | good manufacturing practice(s) |
| GN | Government Notice |
| GNDI | Gross National Disposable Income |
| GNDR | Gender |
| GNDS | Governmentwide Nonprocurement Debarment and Suspension |
| GNI | Gross National Income |
| GNIS | Geographic Names Information System |
| GNMA | Government National Mortgage Association |