English abbreviations from fem to fess
- FEM (Finite Element Modelling)
- FEMA (Federal Emergency Management Agency)
- FEMB (Front-End Motherboard)
- FEMEXFUT (Federación Mexicana de Fútbol Asociación (Spanish, "Mexican Association Football Federation"))
- FEN (Fernando de Noronha Airport)
- FENAFUTH (Federación Nacional Autónoma de Fútbol de Honduras (Spanish, "National Autonomous Football Federation of Honduras"))
- FENS (Federation of European Neuroscience Societies)
- FENZ (Fencing New Zealand)
- FEOL (Front End Of Line)
- FEORP (Federal Equal Opportunity Recruitment Program)
- FEP (Firepower Enhancement Programme)
- FEPAFUT (Federación Panameña de Fútbol (Spanish, "Panamanian Football Federation"))
- FEPO (For Educational Purposes Only)
- FEPP (Federal Excess Personal Property)
- FEQ (Frequently Emailed Questions)
- FER (field equipment room)
- Fer. (Feria ("Weekday"))
- FERA (Family Electric Rate Assistance)
- FERC (Federal Energy Regulatory Commission (U.S.))
- FERRET (Flexible Expert Retrieval of Relevant English Text)
- FERS (Fast Entry Racing System)
- FES (Flywheel Energy Storage)
- FESE (Faculty For Electric And Software Engineering)
- FeSO4 (Ferrous Sulfate)
- FESS (Funabashi English Speaking Society)