| Acronym | Definition |
|---|
| FMU | Francis Marion University |
| FMU | Fukushima Medical University (Fukushima, Japan) |
| FMU | First Morning Urine (fertility) |
| FMU | Floating Multiplication |
| FMU | Foncière des Murs (French: Property Walls) |
| FMU | Florida Metropolitan University |
| FMU | Florida Metropolitan University (now Everest University) |
| FMU | Federation of Motorsport Clubs of Uganda |
| FMU | Fuel Management Unit |
| FMU | Forest Management Unit |
| FMU | Financial Market Utility |
| FMU | Fuel Metering Unit |
| FMU | Fire Management Unit (US National Forest Service) |
| FMU | Flexible Manufacturing Unit |
| FMU | Fitting Make-Up (pipe fitting) |
| FMU | Family Medicine Unit |
| FMU | Field Management Unit (UK) |
| FMU | Flight Management Unit (avionics) |
| FMU | Field Multiplexing Unit (fire alarm) |
| FMU | Fuze Munition Unit |
| FMU | Formatter Multiplexer Unit |
| FMU | From My Understanding |
| FMU | Facility Management Unit |
| FMU | Floating-Point Multiplier-Divider-Square-Root Unit |
| FMU | File Maintenance Utility |