FIS could stand for:
In French:
In English:
Fédération Internationale de Ski, the International Ski Federation
Front Islamique du Salut, the Islamic Salvation Front
Faculty of Information Studies, University of Toronto
Federal Inspection Station
FIS (protein), nucleoid-associated protein in E. Coli
Flight Information Service
Foreign Intelligence Service (Russia)
Frankfurt International School
Fidelity National Information Services, an American company listed on the New York Stock Exchange with symbol "FIS".
Free Information Society, an online community (forum) and compendium of articles and media, primarily of an academic nature.
French International School, a school in Hong Kong