CFMS may refer to:
- Canadian Federation of Medical Students, the national body that represents medical undergraduate trainees across Canada
- Canadian Forces Medical Service, the medical support for the Canadian Forces both at home and abroad
- CFMS-FM, a radio station in Markham, Ontario, Canada
- California Federation of Mineralogical Societies
- Centre For Modelling and Simulation, Bristol, UK
- [1], Comprehensive Financial Management System