| Acronym | Definition |
|---|
| GTP | Grants Pass (Amtrak station code; Grants Pass, OR) |
| GTP | Graduate Training Program (various organizations) |
| GTP | Guanosine 5'-Triphosphate |
| GTP | Gprs Tunnel Protocol |
| GTP | Get the Picture |
| GTP | Green Tree Python |
| GTP | Greek Travel Pages (Internet tourism guide) |
| GTP | Global Travel Professional (certification) |
| GTP | Global TransPark (North Carolina) |
| GTP | Grand Trunk Pacific (defunct Canadian railway) |
| GTP | Good Tissue Practice |
| GTP | Growth and Transformation Plan (Ethiopia) |
| GTP | Go Text Protocol |
| GTP | Gas Treatment Plant |
| GTP | Green Travel Plan (UK) |
| GTP | Gas Turbine Power |
| GTP | Global Text Project (free information) |
| GTP | Grand Touring Prototype |
| GTP | Gran Turismo Portable (game) |
| GTP | GTPlanet.net (website) |
| GTP | Group Transport Protocol |
| GTP | Got to Pee |
| GTP | Geelong Technology Precinct (Deakin University, Australia) |
| GTP | Gambling Treatment Program (various locations) |
| GTP | Gros Tracteurs Passion (French tractor company) |
| GTP | Group Travel Planet (Pigeon Forge, Tennessee) |
| GTP | Green Tacoma Partnership (Tacoma, WA) |
| GTP | Golden Tee Players (golf) |
| GTP | Guaranteed Technical Particulars |
| GTP | Grand Theft Pictures |
| GTP | Guaranteed Trade-in Program (Subaru) |
| GTP | Government Telecommunications Program |
| GTP | General Test Plan |
| GTP | Generic Technical Position |
| GTP | General Telemetry Processor |
| GTP | Gas Tolerant Pump |
| GTP | Ground Test Projectile |
| GTP | Generator Treatment Plan |
| GTP | GPS Translator Processor (Unit) |
| GTP | Group Therapy Program (New York; state prisons) |
| GTP | Good Try Partner |
| GTP | Group Termination Points |
| GTP | Gross Trading Profit |
| GTP | General Tariff Preferences (EU) |
| GTP | Grounded into Triple Play (baseball) |
| GTP | General Type Publication |
| GTP | Gas Turbine Powered Unit |
| GTP | Global Tax Planning (UK) |
| GTP | Generic Technology Platform |
| GTP | Go To Plain (Text) |
| GTP | Global Technology Products |
| GTP | Graduate Teaching Practice (UK) |
| GTP | GPRS (General Packet Radio Service) Tunnelling Protocol (communications protocols) |