| Acronym | Definition |
|---|
| GRT➣Great |
| GRT➣Good Rockin' Tonight |
| GRT➣Gross Register Tonnage (cargo measurement; shipping) |
| GRT➣Glimcher Realty Trust |
| GRT➣Gene Replacement Therapy |
| GRT➣Goruck Tough (team activity) |
| GRT➣Grand River Transit (Waterloo, Canada) |
| GRT➣Group Randomized Trial (clinical trial) |
| GRT➣General Relativity Theory |
| GRT➣Gross Receipt Tax |
| GRT➣Gypsy, Roma and Traveller |
| GRT➣Global Relief Technologies (Portsmouth, NH) |
| GRT➣Group Rapid Transit |
| GRT➣Grand Rapids Technologies (avionic instrument company) |
| GRT➣Gruppo per le Relazioni Transculturali |
| GRT➣Gestionnaires de Réseau de Transport (French) |
| GRT➣Ground Resonance Testing |
| GRT➣Germanium Resistance Thermometer |
| GRT➣Generic Real Time |
| GRT➣Granular Restore Technology (Symantec Inc.) |
| GRT➣Government Rate Tender |
| GRT➣Ground Receive Terminal |
| GRT➣Gravity Race Tour (cycling) |
| GRT➣Gold Rush Trail |
| GRT➣Ground Readiness Test |
| GRT➣Gross Registered Tonnage/Tons |
| GRT➣Ground Radio Transmitter |
| GRT➣General Range Types (forestry) |
| GRT➣General Radiologic Technologist |
| GRT➣General Reactor Technology |
| GRT➣Governor Response Tester |
| GRT➣Gross Requirement Tape |