| Acronym | Definition |
|---|
| ATRU➣Auditorium Theatre of Roosevelt University (Chicago, IL) |
| ATRU➣Application Technology Research Unit (USDA) |
| ATRU➣Asociación de Travestis del Uruguay (Spanish) |
| ATRU➣Airsoft Tactical Recon Unit (Luzon, Philippines) |
| ATRU➣Auto-Transformer-Rectifier Unit |
| ATRU➣African Radio and Television Union |