FMK
| Acronym | Definition |
|---|---|
| FMK | Flush Mount Kit (electronics) |
| FMK | Fortran Make File |
| FMK | Fluoromethyl Ketone |
| FMK | FM (Frequency Modulation)-Kumamto (Japan) |
| FMK | Folkereisning Mot Krig (Norwegian: People Rising Anti-War) |
| FMK | For My Kountry (firearms distributor; Placentia, CA) |
| FMK | Fredericia Motor Klub (Danish: Fredericia Motor Club; est. 1945; Fredericia, Denmark) |
| FMK | Freiheitlicher Motorrad Klub (Austria) |
| FMK | Field Marshalling Kiosk |