| Abbreviation | Definition |
|---|---|
| FITUG | Federation of Independent Trade Unions in Guyana |
| FITUG | Federation of Independent Trade Unions of Guyana |
| FIVB | Federation Internationale de Volleyball |
| FKTU | Federation of Korean Trade Unions |
| FLFCU | Fort Lee Federal Credit Union |
| FLFCU | Fort Lewis Federal Credit Union |
| FMCU | First Missouri Credit Union |
| FMCU | Fort McClellan Credit Union |
| FMCU | Fort McPherson Credit Union |
| FMGE | Federation of Mizoram Government Employees |
| FMWU | Federated Miscellaneous Workers' Union |
| FNAP | Forum of Nurses in Advanced Practice |
| FOCUS | Financial Online Credit Union Services |
| FOP | Fraternal Order of Police |
| FORUM | Federation Of Retired Union Members |
| FOSU | Friends Of the Soviet Union |
| FPCU | Financial Partners Credit Union |
| FPCU | Financial Plus Credit Union |
| FPCU | First Priority Credit Union |
| FPU | Fishermen's Protective Union |