FMS may stand for:
- Fixed Mobile Substitution
- Foreign military sales, a term in arms trade
- Final Multiple Score, the calculation used to advance enlisted sailors in the United States Navy.
- Fisichella Motor Sport, motor racing team owned by F1 driver Giancarlo Fisichella.
Read more about FMS: Government Agencies, Operations, People, Educational Institutions, Psychology, Medicine, Computing, Simulation and Training