JRG
| Acronym | Definition |
|---|---|
| JRG | Joint Review Group (US DoD) |
| JRG | Johann-Rist-Gymnasium (German school) |
| JRG | Japan Radio Glass (est. 1943) |
| JRG | Junta Revolucionaria de Gobierno (Revolutionary Governing Junta; El Salvador) |
| JRG | James River Grotto (National Speleological Society chapter; Lynchburg, VA) |
| JRG | Jim Roberts Group |
| JRG | Japan Railways Group |