| Acronym | Definition |
|---|
| FSI➣Foreign Service Institute |
| FSI➣Financial Services Industry |
| FSI➣Fore Systems, Inc. (switching equipment) |
| FSI➣Flight Simulator |
| FSI➣Fonds Stratégique d'Investissement (French: Strategic Investment Fund) |
| FSI➣Failed States Index |
| FSI➣Fluid Structure Interaction |
| FSI➣Freeman Spogli Institute (Stanford University; Palo Alto, CA) |
| FSI➣Fuel Stratified Injection |
| FSI➣Future Store Initiative |
| FSI➣Final Systems Installation |
| FSI➣Floor Space Index |
| FSI➣Free Standing Insert |
| FSI➣Federazione Scacchistica Italiana (Italian Chess Federation) |
| FSI➣Forest Survey of India |
| FSI➣Front-Side Illuminated (sensors) |
| FSI➣Fournisseur de Services Internet (France) |
| FSI➣Fujisoft Incorporated (Japan) |
| FSI➣Finers Stephens Innocent (law firm; UK) |
| FSI➣Fairchild Semiconductor International (various locations) |
| FSI➣Faculty Summer Institute (Illinois) |
| FSI➣Free Swelling Index (coal) |
| FSI➣Flight Safety International |
| FSI➣Fonds Spécial d'Invalidité (French: Special Disability Fund) |
| FSI➣Federation of Saskatchewan Indians (Canada) |
| FSI➣Fox Sports International (sports programming) |
| FSI➣Fortress Systems International (Charlotte, NC) |
| FSI➣Final-State Interaction |
| FSI➣Forensic Science International |
| FSI➣Florida Space Institute |
| FSI➣Fund Screen Investigation (finance) |
| FSI➣Federal Systems Integrator |
| FSI➣Flawless Start-Up Initiative (oil production) |
| FSI➣Funk Software, Inc. (Cambridge, MA) |
| FSI➣Football Supporters International (fan club) |
| FSI➣Federal Sources, Inc. |
| FSI➣Free Space Interiors (India) |
| FSI➣Freshman Summer Institute (various schools) |
| FSI➣Forensic Science Institute (Los Angeles, CA) |
| FSI➣Football Streaming Info |
| FSI➣Financial Status Indicator (stock trading) |
| FSI➣Fishery Survey of India |
| FSI➣Fellow of the Securities Institute |
| FSI➣FRISK Software International |
| FSI➣Fédération Suisse des Organisations d'Informatique |
| FSI➣Fuji Seal International (Japan) |
| FSI➣First State Innovation (Delaware) |
| FSI➣Financial Systems Integration |
| FSI➣Formal System Identifier |
| FSI➣Fellow of the Securities & Investment Institute |
| FSI➣Fusfeld Group Inc (Framingham, MA) |
| FSI➣Flanders Scientific. Incorporated |
| FSI➣Food, Seed and Industrial (agriculture) |
| FSI➣Faculty Staff Intranet (Gwynedd-Mercy College; Pennsylvania) |
| FSI➣Future Store Initiative (Metro Group) |
| FSI➣FACTS Services, Inc. (Coral Gables, FL) |
| FSI➣Feng Shui Information |
| FSI➣Funeral Services, Inc (Tallahassee, FL) |
| FSI➣Failed Self Install |
| FSI➣Fleet Synergy International |
| FSI➣Flag State Implementation Sub-Committee (IMO) |
| FSI➣Functionally Significant Item |
| FSI➣Fasting Glucose and Specific Insulin Levels |
| FSI➣Facility Science Instrument |
| FSI➣Financial Service Institution |
| FSI➣Fraud Scheme Investigator |
| FSI➣Feasibility Study Institute |
| FSI➣Family Stations, Inc. (Oakland, CA) |
| FSI➣FORCEnet Services Infrastructure |
| FSI➣Federazióne Svizzera Delle Organizzatióni d'Informatica |
| FSI➣Federal Stock Item |
| FSI➣Fire Safety International Ltd (UK) |
| FSI➣Financial Statement Item |
| FSI➣Fuchs Swelling Index |
| FSI➣Forestry Science Institute of Vietnam |
| FSI➣Flight System Integration |
| FSI➣Federal Spousal Impoverishment |
| FSI➣Full Screen Interstitial (Interative Media advertising unit) |