| Acronym | Definition |
|---|
| FIS➣Flood Insurance Study |
| FIS➣Fidelity Information Services (various locations) |
| FIS➣Faculty of Information Studies |
| FIS➣Financial Information System |
| FIS➣Future Internet Symposium |
| FIS➣Federation International de Ski |
| FIS➣Fondo de Inversión Social (Spanish: Social Investment Fund; various nations) |
| FIS➣Front Islamique du Salut (Islamic Salvation Front) |
| FIS➣Fingerprint Identification System |
| FIS➣Factory Installation Services |
| FIS➣File Input Stream |
| FIS➣Full Information System |
| FIS➣Fuel Injection System |
| FIS➣Family Income Supplement (Ireland) |
| FIS➣Forage Information System (Oregon State University) |
| FIS➣Far-Infrared Surveyor |
| FIS➣Federal Investigative Services (Office of Personnel Management) |
| FIS➣Fighter Interceptor Squadron |
| FIS➣Fuzzy Inference System |
| FIS➣Flight Information Service |
| FIS➣Federazione Italiana Scherma (Italian Fencing Federation) |
| FIS➣Fluorescence Imaging System |
| FIS➣Fixed Income Securities |
| FIS➣Friends of International Students (various schools) |
| FIS➣Flandreau Indian School (Flandreau, SD) |
| FIS➣Fatigue Impact Scale (quality of life questionnaire) |
| FIS➣Financial Information Service |
| FIS➣Foreign Intelligence Service |
| FIS➣Federal Inspection Services |
| FIS➣Frame Information Structure |
| FIS➣First Interstate (Bank) Service |
| FIS➣Fourniture Industrie Service (French: Service Industry Provision) |
| FIS➣Frankfurt International School |
| FIS➣Financial Institutions Services (Jamaica) |
| FIS➣Foreign Intelligence Section (Canada) |
| FIS➣Forest Invasive Species |
| FIS➣Federazione Italiana dello Scautismo (Italian: Federation of Italian recognized scout and guide organizations) |
| FIS➣Family Impact Seminar (various locations) |
| FIS➣Federal Inspection Station |
| FIS➣French International School (Hong Kong) |
| FIS➣Free Into Store |
| FIS➣Free-In-Store |
| FIS➣Fabrication Inspection System |
| FIS➣Facility Interface Sheet (US NASA) |
| FIS➣Fault Indication Signal |
| FIS➣Fisherman's Insurance Services, Inc |
| FIS➣Florida Irrigation Society |
| FIS➣Field Information Support (United Nations) |
| FIS➣Foundation for Infinite Survival |
| FIS➣Fixed Interval Smoothing |
| FIS➣Friends Ivory Sime (UK) |
| FIS➣Functional Interface Specification |
| FIS➣Fairway Information System (European Union) |
| FIS➣Financial and Information Services |
| FIS➣Florida Irrigation Supply, Inc (Sanford, Florida) |
| FIS➣Freedom Imaging Systems (Lockport, IL) |
| FIS➣Flight Instrumentation System |
| FIS➣Firefighters' Integrated Suit |
| FIS➣Fleet Introduction Site |
| FIS➣Flight Interceptor Squadron |
| FIS➣Federation of International Seedsmen |
| FIS➣Fax Idle Suppression |
| FIS➣Fire Inhibit Switch (Aegis Combat System) |
| FIS➣Feedback Information System |
| FIS➣Friendly Information System |
| FIS➣Fault Isolation Software |
| FIS➣Foundation Information Systems, Incorporated (Charlotte, NC) |
| FIS➣Fast-Idle Solenoid (electronic engine idle speed/vacuum control device) |
| FIS➣Federation International du Slot (International sanctioning body for H.O. scale slot car racing) |
| FIS➣Foreign Instrumentation System |
| FIS➣Fact Information Sheet |
| FIS➣Formation Internet Service (French: Internet Service Training) |
| FIS➣Force Information Service |
| FIS➣Fundamental Intermittent Standard |