| Acronym | Definition |
|---|
| FCU➣Federal Credit Union |
| FCU➣Financial Credit Union (various locations) |
| FCU➣Feng Chia University (Taiwan) |
| FCU➣Fact Checkers Unit (web series) |
| FCU➣Florida Credit Union |
| FCU➣Formation Continue Universitaire (French: Continuing Education University) |
| FCU➣Fraud Control Unit |
| FCU➣Fused Connection Unit |
| FCU➣Ferrovia Centrale Umbra (Italian: Umbrian Central Railway) |
| FCU➣Fan Control Unit |
| FCU➣Fan Coil Unit |
| FCU➣Faith Community United (various locations) |
| FCU➣Foster Care Unit (various locations) |
| FCU➣Fuel Control Unit |
| FCU➣Flexor Carpi Ulnaris |
| FCU➣Flight Control Unit |
| FCU➣Fukuyama City University (Hiroshima, Japan) |
| FCU➣Familial Cold Urticaria |
| FCU➣Fire Control Unit |
| FCU➣Flow Control Unit |
| FCU➣Field Camera Unit |
| FCU➣Fare Construction Unit (airfare) |
| FCU➣Field Communication Unit |
| FCU➣Feedback Control Unit |
| FCU➣Fuel Consumption Unit |
| FCU➣Foals and Calves University (gaming) |
| FCU➣Filter/Combiner Unit |
| FCU➣Fussball Club Unterstrass (Zurich, Swiss soccer club) |
| FCU➣Fluid Cooling Unit |