| Acronym | Definition |
|---|
| ORG | Organization (usually nonprofit top level internet domain) |
| ORG | Open Rights Group (UK) |
| ORG | Origin (Geographical Location; US DoD) |
| ORG | Origin |
| ORG | Organizational |
| ORG | Oxford Research Group (UK) |
| ORG | Set Origin (assembly language directive) |
| ORG | Office of the Registrar General (Canada) |
| ORG | Orgrimmar (gaming, World of Warcraft city) |
| ORG | Online Roleplaying Game |
| ORG | Organizer File |
| ORG | Organization |
| ORG | Optical Rain Gauge (weather) |
| ORG | Outdoor Recreation Group |
| ORG | Orange Regional Gallery (Australia) |
| ORG | Office of the Regulator-General (Victoria, Australia) |
| ORG | Outer Rim Garrison (gaming clan) |
| ORG | Operation Research Group |
| ORG | Objects and Relationships Graph |