| Acronym | Definition |
|---|
| TFCU | Teachers Federal Credit Union |
| TFCU | Tinker Federal Credit Union |
| TFCU | Tyndall Federal Credit Union (Tyndall Air Force Base, Panama City, Florida) |
| TFCU | Tower Federal Credit Union |
| TFCU | The Federal Credit Union |
| TFCU | Tooele Federal Credit Union |
| TFCU | Technicolor Federal Credit Union |
| TFCU | Tongass Federal Credit Union |
| TFCU | Transportation Federal Credit Union |
| TFCU | Tuskegee Federal Credit Union (Tuskegee, AL) |
| TFCU | Taunton Federal Credit Union |
| TFCU | Tropical Federal Credit Union |
| TFCU | Torrance Federal Credit Union |
| TFCU | Tripler Federal Credit Union |
| TFCU | Transco Federal Credit Union |
| TFCU | Tiger Federal Credit Union |
| TFCU | Transportable Field Calibration Unit |
| TFCU | Transims Federal Credit Union |
| TFCU | Travis Federal Credit Union |
| TFCU | Ticonderoga Federal Credit Union |
| TFCU | Taconnet Federal Credit Union |
| TFCU | Targeting and Fire Control Unit |