| Acronym | Definition |
|---|
| GRWA➣Gaming, Racing and Wagering Australia (gambling conference) |
| GRWA➣Georgia Rural Water Association |
| GRWA➣Grace's Warbler (bird species) |
| GRWA➣Greenbrier River Watershed Association (Lewisburg, WV) |
| GRWA➣Gananoque River Waterways Association (Ontario, Canada) |
| GRWA➣Generalized Rotating-Wave Approximation |