| Acronym | Definition |
|---|
| FEC | Federal Election Commission |
| FEC | Forward Error Correction |
| FEC | Fédération des Entreprises du Congo (French: Federation of Congolese Enterprises) |
| FEC | Full Economic Costing |
| FEC | Foyer de l'Etudiant Catholique (French: Student Catholic Home) |
| FEC | Family Entertainment Center (various organizations) |
| FEC | Facilities Engineering Command |
| FEC | Fédération des Employés et Cadres (French: Federation of Employees and Executives) |
| FEC | Federal Executive Council |
| FEC | Federal Equipment Company (defense industry supplier; Cincnnati, OH) |
| FEC | Fast Ether Channel |
| FEC | Front-End Electronic Card |
| FEC | Front End Controller |
| FEC | Fast Ethernet Controller |
| FEC | Forwarding Equivalence Class |
| FEC | Fonds d'Equipement Communal (French: Communal Equipment Fund; Morocco) |
| FEC | Flash Exposure Compensation (cameras) |
| FEC | Florida East-Coast Railway |
| FEC | Field Equipment Controller |
| FEC | Farmers Electric Cooperative (Greenville, TX) |
| FEC | Firich Enterprises Co. (various locations) |
| FEC | Federal Electronics Challenge (various organizations) |
| FEC | Fluorouracil, Epirubicin, Cyclophosphamide |
| FEC | Field Emission Cathode |
| FEC | Forward Error Control |
| FEC | Financial Education Center (various organizations) |
| FEC | Foreign Exchange Certificate |
| FEC | Florida Education Channel (Panhandle Area Educational Consortium) |
| FEC | Faecal Egg Count (parasitological diagnosis) |
| FEC | Further Education College (UK) |
| FEC | Facility Emergency Coordinator (US FEMA) |
| FEC | Furukawa Electric Company (Japan) |
| FEC | Federal Express Corporation |
| FEC | Final Energy Consumption |
| FEC | Federal Energy Commission (of the Russian Federation) |
| FEC | Family Equality Council (est. 1979; Boston, MA) |
| FEC | Fetch Execute Cycle (computing) |
| FEC | Field Engineering Change |
| FEC | Family Education Center |
| FEC | Fully Executed Contract |
| FEC | Future England Captain (soccer; UK) |
| FEC | Fast Ethernet Channel |
| FEC | Fabrication Evaluation Chip (semiconductors) |
| FEC | Farmers Elevator Company (various locations) |
| FEC | Family Enterprise Center (various locations) |
| FEC | Faculty Executive Council |
| FEC | Faculty Ethics Committee (various schools) |
| FEC | Fire Extinguisher Cabinet |
| FEC | Foam Ear Cushion |
| FEC | Front-End Computer (satellite control ground stations) |
| FEC | Fogelman Executive Center (University of Memphis; Memphis, TN) |
| FEC | Frame Erasure Concealment |
| FEC | Faculty Effort Certification |
| FEC | Flensburger Enten Clique (German car club) |
| FEC | Front End Credibility (UK Customs) |
| FEC | Forwarding Equivalency Classes (multi-protocol label switching) |
| FEC | Fortaleza Esporte Clube (soccer club) |
| FEC | Forward Equipment Compartment |
| FEC | Federation Europeenne de Croquet (French: European Federation of Croquet) |
| FEC | Forward Error Compression |
| FEC | Free Element Condition |
| FEC | Free Episcopal Church |
| FEC | Flexible Etched Circuit |
| FEC | Forced Expiratory Capacity |
| FEC | Fleet/Forward Error Correction |
| FEC | Force Element Commander |
| FEC | Far End Converter (Valere) |
| FEC | Field Electrical Center (aka airfield lighting power center) |
| FEC | Fellow of Engineers Canada |