| FSE | Face Sensing Engine 
| Others |
| FSE | Facility Support Element
| Others |
| FSE | Fantastic Super Experts
| Others |
| FSE | Fast Silent Ergonomic
| Others |
| FSE | Fast Smooth and Efficient
| Others |
| FSE | Fast Software Encryption
| Others |
| FSE | Fast Spin Echo
| Others |
| FSE | Fast Stable and Efficient
| Others |
| FSE | Fast Stable Efficient
| Others |
| FSE | Federation of Screenwriters in Europe
| Others |
| FSE | Feline Spongiform Encephalopathy
| Others |
| FSE | Festus Slug E
| Others |
| FSE | Fetal Scalp Electrode
| Others |
| FSE | Fiberglass Structural Engineering
| Others |
| FSE | Field Sales Engineer
| Others |
| FSE | Field Scanned ENDOR (Electron Nuclear Double Resonance)
| Others |
| FSE | Field Service Engineer
| Others |
| FSE | Field Support Engineer
| Others |
| FSE | Fiero Se
| Others |
| FSE | Filament Spin Evolution
| Others |
| FSE | File Server Ethernet
| Others |
| FSE | File System Extender
| Others |
| FSE | Film Speed Equivalent
| Others |
| FSE | Final Summative Evaluation
| Others |
| FSE | Financial Sales Executives
| Others |
| FSE | Financial Services Entity
| Others |
| FSE | Finite State Entropy
| Others |
| FSE | Fire Safety Engineering
| Others |
| FSE | Fire Support Element
| Others |
| FSE | Flight Simulation Engineer
| Others |
| FSE | Flying Squirrel Entertainment
| Others |
| FSE | Flying Station Engineer
| Others |
| FSE | Fondo Sociale Europeo
| Others |
| FSE | Food Safety Evaluation
| Others |
| FSE | Food Security and the Environment
| Others |
| FSE | Food Surplus Entrepreneurs
| Others |
| FSE | Football Supporters Europe
| Others |
| FSE | Forecast Standard Error
| Others |
| FSE | Foreign Sanctions Evaders
| Others |
| FSE | Foreign Service Employee
| Others |
| FSE | Fortran Simulation Environment
| Others |
| FSE | Forumul Social European
| Others |
| FSE | Forward Symbolic Execution
| Others |
| FSE | Foundations of Software Engineering
| Others |
| FSE | Frankfurt Stock Exchange
| Others |
| FSE | Frein de Stationnement Electrique
| Others |
| FSE | French Snobbery Everywhere
| Others |
| FSE | Freshman Service Experience
| Others |
| FSE | Fuerza de Seguridad del Estado
| Others |
| FSE | Fuji Speedway Edition
| Others |
| FSE | Fukuoka Stock Exchange
| Others |
| FSE | Full Screen Editor
| Others |
| FSE | Full Season Equivalents
| Others |
| FSE | Full Service Equivalent
| Others |
| FSE | Functional Shape and Easy
| Others |
| FSE | Functional Support Element
| Others |
| FSE | Funniest Stuff Ever
| Others |
| FSE | Funny S*** Ever
| Others |