| Acronym | Definition |
|---|
| TECU➣TESS (Tactical Engagement Simulation System) Electronic Control Unit |
| TECU➣Tractor Electronic Control Unit |
| TECU➣Total Electron Content Units |
| TECU➣The Education Credit Union (est. 1935; Amarillo, TX) |
| TECU➣Transmission Electronic Control Unit (vehicle gearboxes) |
| TECU➣Texaco Employees Credit Union (Ireland) |