| Abbreviation | Definition |
|---|---|
| GCDU | Greene County Deputies Union |
| GCTU | General Confederation of Trade Unions |
| GECU | General Electric Credit Union |
| GECU | Government Employees Credit Union |
| GECU | Governmental Employees Credit Union |
| GECU | Greater Eastern Credit Union |
| GECU | Gulf Employees Credit Union |
| GEU | Graduate Economics Union |
| GEU | Graduate Employee Union |
| GEU | Graduate Employees Union |
| GFCU | Generations Federal Credit Union |
| GFCU | Gerber Federal Credit Union |
| GFCU | Glendale Federal Credit Union |
| GFCU | GraCo Federal Credit Union |
| GFCU | Grand Forks Credit Union |
| GFCU | Greenbelt Federal Credit Union |
| GFCU | Greenville Federal Credit Union |
| GFOTU | General Federation of Oman Trade Union |
| GFOTU | General Federation of Oman Trade Unions |
| GFOTU | General Foundation of Oman Trade Union |