FSI
FSI stands for:
- Student council initiative , grassroots democratic associations of students
- Distance learning institute of the Beuth University of Applied Sciences Berlin
- Distance learning institute of the Berlin School of Economics and Law
- Ferrovie dello Stato Italiane , State Railway Company of Italy
- Floor Space Index , English term for " floor area number (GFZ) "
- Fluid-Structure-Interaction from the field of fluid mechanics, see Fluid-Structure-Coupling
- Fonds stratégique d'investissement , a French sovereign wealth fund
- FontShop International , an umbrella brand of FontShops around the world
- Foreign Service Institute , an institution of the United States Department of State to prepare US diplomats for the respective target countries
- Fragile States Index , formerly Failed States Index (denotes for states the risks of state collapse, see Weak State )
- Frank Stronach Institute , an institute at Graz University of Technology
- Fuel Stratified Injection from the field of injection technology for internal combustion engines, see stratified charge
- Henry Post Army Airfield (IATA code), Fort Sill Air Base , Comanche County, Oklahoma
