| Acronym | Definition |
|---|
| FM | From |
| FM | Federated States of Micronesia (US postal abbreviation) |
| FM | Foreign Minister |
| FM | Frequency Modulation |
| FM | Farm to Market (secondary road, Texas) |
| FM | Format |
| FM | Micronesia |
| FM | Fort Minor (band) |
| FM | February, March (budget times in Indian states) |
| FM | Fibromyalgia |
| FM | Follow Me |
| FM | Financial Management |
| FM | Football Manager (computer game) |
| FM | Family Member (AUXMIS) |
| FM | Facility Management |
| FM | Free Market |
| FM | Fort Myers (Florida) |
| FM | Full Moon |
| FM | Fleetwood Mac (band) |
| FM | Fireman |
| FM | Force Management |
| FM | Family Medicine |
| FM | Fat Man (atomic bomb) |
| FM | Flogging Molly (band) |
| FM | Facility Manager |
| FM | Factory Mutual |
| FM | Freddie Mercury (Queen lead singer) |
| FM | Family Room |
| FM | Front Matter |
| FM | Field Manual (Army) |
| FM | Finance Manager |
| FM | Forest Management |
| FM | Facilities Maintenance |
| FM | Funky Monkey (104.9 FM Seattle, WA radio station) |
| FM | Forum Moderator (message boards) |
| FM | Frequency Modulated |
| FM | Font Metrics |
| FM | Flow Meter |
| FM | Fiscal Management |
| FM | Ferromagnetic |
| FM | Fermium |
| FM | Franklin Mint |
| FM | Force Majeure (French: Greater Force) |
| FM | Final Mix (Japanese Kingdom Hearts game) |
| FM | Fecal Matter |
| FM | Fault Management |
| FM | Financial Manager |
| FM | Formal Method(s) |
| FM | Failure Mode |
| FM | Field Marshal |
| FM | Fairbanks-Morse |
| FM | Flight Model |
| FM | Frequency Management |
| FM | Filosofian Maisteri (Finnish: masters degree) |
| FM | Fire Marshall |
| FM | Flow Manufacturing |
| FM | Foreign Material |
| FM | Facility Map (FAA ARTCC mapping of areas to a facility) |
| FM | Fish Meal |
| FM | Field Maintenance |
| FM | Floor Manager |
| FM | Ferdinand Marcos |
| FM | Fissile Material |
| FM | Flexible Manufacturing |
| FM | Front Midship (Nissan) |
| FM | FIDE Master (chess) |
| FM | Fox Mulder (X-Files character) |
| FM | File Maintenance |
| FM | Flying Monkeys |
| FM | Force Main (civil/hydraulic engineering) |
| FM | Fire Mission |
| FM | Fast Messages |
| FM | Frequency Multiplier (NIOSH) |
| FM | Fukai Mori (Japanese song, Inuyasha closing theme) |
| FM | Federal Mediation and Conciliation Service |
| FM | Functional Manager |
| FM | Functional Module |
| FM | Factory Model |
| FM | Fetal Movement |
| FM | Force Modernization |
| FM | Femtometer (10 E^-15, one quadrillionth of a meter) |
| FM | Faulkner Mazda (Pennsylvania) |
| FM | Frequency Modulate |
| FM | Full Mana |
| FM | Field Modification |
| FM | Fan Marker |
| FM | Full Migration |
| FM | Fineness Modulus |
| FM | Fibrosing Mediastinitis |
| FM | Force Module |
| FM | Financial Minister |
| FM | Facial Myokymia |
| FM | Friable Material |
| FM | Freaking Magic (polite form; especially applied to programming or electronics) |
| FM | Fusion Module |
| FM | Facility Module |
| FM | Frontier Mountains (Everquest) |
| FM | Finance Memorandum |
| FM | Fibrous Monolith |
| FM | Finished Machined |
| FM | Facing Matter |
| FM | Freedom Medicine (Pakistan NGO) |
| FM | Filius Matri (Latin: Son to His Mother, epigraphy) |
| FM | Fecit Monumentum (Latin: Built A Monument, epigraphy) |
| FM | Filio Mater (Latin: Mother to Her Son, epigraphy) |
| FM | Frijoles Mesa Site |
| FM | Filio Morenti (Latin: To His/Her Dying Son, epigraphy) |