TECU
| 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) |