| Acronym | Definition |
|---|
| ERTT➣Etablissement de la Radiodiffusion Television Tunisienne (French: Tunisian Radio Diffusion and Television Establishment; Tunisia) |
| ERTT➣Engine Room Team Trainer (civil engineering) |
| ERTT➣Emergency Response & Technical Training (New York) |
| ERTT➣Enhance Rural Teacher Training (China) |