| Acronym | Definition |
|---|
| TMU | Taipei Medical University |
| TMU | Tokyo Metropolitan University |
| TMU | Texture Memory Unit |
| TMU | Texture Mapping Unit |
| TMU | Threshold Memory Unit |
| TMU | Traffic Management Unit |
| TMU | Texture Management Unit |
| TMU | Traffic Management Unit (BCOPD) |
| TMU | Traffic Management Unit (FAA) |
| TMU | Thermal Management Unit (driver) |
| TMU | Total Measurement Uncertainty |
| TMU | Texture Mapping Unit (3D video rendering hardware) |
| TMU | Temperature Measurement Unit |
| TMU | Time Measurement Unit |
| TMU | Tarbiat Modarres University |
| TMU | Track Mania United (gaming) |
| TMU | Transit Mixed Use (zoning; Colorado) |
| TMU | Texas Metropolitan University (fictional college on the TV show "Friday Night Lights") |
| TMU | Tianjin Medical University (Tianjin, China) |
| TMU | Texas Methodist University |
| TMU | Tibetan Machine Uni (font) |
| TMU | True Miles Unknown (automotive sales) |
| TMU | Transit Monitoring Unit (various locations) |
| TMU | Torpedo Maintenance Unit |
| TMU | The Movies Uncensored (website) |
| TMU | To My Understanding |
| TMU | The Man Upstairs |
| TMU | Transmission Message Unit |
| TMU | The Mafia Underground (game) |
| TMU | Test Monitoring Unit |
| TMU | Time Measured Unit |
| TMU | The Movies Underground (website) |
| TMU | Table Maintenance Utility (DMLSS) |
| TMU | Tape Memory Unit |
| TMU | Tarbiat Moallem University (Iran) |
| TMU | Total Miles Unknown (car sales) |
| TMU | Toastmasters University |
| TMU | Transport Miljö Utbildning (Swedish: Transport Environment Education) |
| TMU | Temporarily Medically Unfit |
| TMU | The Matrix Unleashed (Jedi Knight: Jedi Academy mod) |
| TMU | Team Man Up (fishing team) |