| Acronym | Definition |
|---|
| GR | Gram(s) |
| GR | Group |
| GR | Greece |
| GR | Great |
| GR | Greek |
| GR | Grade |
| GR | Gear |
| GR | Gross |
| GR | Gravity |
| GR | Grain |
| GR | Grand Rapids (Michigan, USA) |
| GR | Graubünden (Grisons; Swiss Canton) |
| GR | General Relativity |
| GR | Hail (Meteorological Report) |
| GR | Government Relations |
| GR | Gamma Ray |
| GR | Ghost Recon (game) |
| GR | Golden Retriever |
| GR | Get Real |
| GR | Ghost Rider (Honor Harrington science fiction novels) |
| GR | Glucocorticoid Receptor |
| GR | GetRight (Download manager) |
| GR | General Rules (Passenger Air Tariff) |
| GR | Green River |
| GR | Grantee (IRB) |
| GR | GamesRadar (gaming website) |
| GR | Government Regulation |
| GR | Grantor (IRB) |
| GR | Green Room |
| GR | Guardrail |
| GR | GameReplays.org (gaming website) |
| GR | Grid Reference |
| GR | Green Revolution (agricultural hybrid technology) |
| GR | Grosseto, Toscana (Italian province) |
| GR | General Release |
| GR | Gerry Rafferty (musician) |
| GR | Gateway Router |
| GR | Graubunden (canton postcode, Switzerland) |
| GR | Good Race (gaming) |
| GR | Gene Roddenberry (creator of Star Trek) |
| GR | Girls Rule |
| GR | Glory Road (movie) |
| GR | Generic Requirement |
| GR | Garden Railways (magazine) |
| GR | Guaranteed Rate |
| GR | Generic Research |
| GR | Government Resolution |
| GR | Ground Round (restaurant chain) |
| GR | Grashof Number |
| GR | Gear Reducer (drafting and design) |
| GR | Games Remaining (sports) |
| GR | Global Refund |
| GR | Gabriel Richard (high school; Riverview, Michigan) |
| GR | Globalise Resistance |
| GR | Ghost Reveries (Opeth music album) |
| GR | Guest Researcher (US NIH) |
| GR | Global Range |
| GR | Georgia Review |
| GR | GenRad, Inc. |
| GR | George Rex (King George) |
| Gr | Receiver Gain |
| GR | Glenn Robinson (NBA player) |
| GR | GameRanger (online game) |
| GR | GameRenders (website) |
| GR | GameRanger |
| GR | Galois Ring |
| GR | Grand Rapids Eastern (railroad) |
| GR | Gunnery Range |
| GR | Galactic Republic (Star Wars) |
| GR | Gun Radar |
| GR | Good Recognition |
| GR | General Regulator |
| GR | Ghostring (Ragnarok online) |
| GR | graduated response (US DoD) |
| GR | Golden Run |
| GR | Guaranteed Reagent (laboratory product designation) |
| GR | Ground Reconnaissance |
| GR | Geographic Redundancy (high availability systems) |
| GR | Greek National Road (Greece highway) |
| GR | Gurkha Regiment (Indian Army) |
| GR | Grab Radon Sampling |
| GR | Gair Rhydd (student newspaper, Cardiff, Wales) |
| GR | Grid Ratio |
| GR | Goat Roper |
| GR | Gross Requirement |
| GR | Graded Review (USAF Academy) |
| GR | Gross Redemption |
| GR | Game Ruler |
| GR | Ground Reflector |
| GR | Grass River Railroad Corporation |
| GR | Gunfighters Rule |
| GR | Green Colored Terminal Marking |
| GR | Glitch Remixed (videogame clan) |