| Abbreviation | Definition |
|---|---|
| FPWU | Federal Printing Workers Union |
| FRP | Family Reunion Program |
| FSCU | Family Savings Credit Union |
| FSCU | Family Security Credit Union |
| FSCU | Financial Security Credit Union |
| FSCU | Fire Service Credit Union |
| FSCU | First Security Credit Union |
| FSCU | First Service Credit Union |
| FSCU | Free State Credit Union |
| FSCU | Funeral Service Credit Union |
| FSFCU | Family Savings Federal Credit Union |
| FSFCU | First Service Federal Credit Union |
| FSFCU | Four Seasons Federal Credit Union |
| FSFCU | Franklin Somerset Federal Credit Union |
| FSU | Faculty Student Union |
| FSUCU | First Scottish University Credit Union |
| FTCU | First Tech Credit Union |
| FTCU | Florida Transportation Credit Union |
| FTFCU | First Tech Federal Credit Union |
| FTU | Federation of Trade Unions |