FIS or fis may refer to: Science and technology. Fis, an E. Coli gene. Fis phenomenon, a phenomenon in linguistics. F♯ (musical note) Flight information service, an air traffic control service. Frame Information Structure, a Serial ATA technology. Organizations. FIS (company), an American financial services company. Fairy Investigation Society. Federal Intelligence Service, a Swiss intelligence service. Festival Internacional de Santander, a Spanish music festival. Fiji Intelligence Services. Fish Information and Services, an international news agency. Flandreau Indian School.
https://en.wikipedia.org/wiki/FIS