GMU
| Acronym | Definition |
|---|---|
| GMU | George Mason University |
| GMU | Game Management Unit |
| GMU | Gulf Medical University (United Arab Emirates) |
| GMU | General Motors University |
| GMU | Guard Medical Unit (US Air Force) |
| GMU | Gas Metering Unit |
| GMU | Guided Missile Unit |
| GMU | Geographic Management Unit |
| GMU | GPS Monitoring Units |
| GMU | Grant Management Unit (fundraising) |
| GMU | Gyro Mechanical Unit |
| GMU | Gold Musketeer's Uchigatana (gaming) |
| GMU | Geotechnical Mapping Unit |