TETRA
| Acronym | Definition |
|---|---|
| TETRA | TErrestrial TRunked RAdio |
| TETRA | Trans European Trunked Radio |
| TETRA | Texas Equestrian Trail Riders Association |
| TETRA | Trans European Trunked Radio Access |
| TETRA | Telehealth and Educational Technology Resource Agency (Memorial University of Newfoundland; Canada) |