| GTP | Game Transfer Phenomena 
| Others |
| GTP | Gartner for Technical Professionals
| Others |
| GTP | Gateway to Perth
| Others |
| GTP | Gather To Play
| Others |
| GTP | Geelong Technology Precinct
| Others |
| GTP | Gene Therapy Program
| Others |
| GTP | General Treatment Products
| Others |
| GTP | Geophysical Turbulence Program
| Others |
| GTP | Geothermal Training Programme
| Others |
| GTP | Gestalt Theoretical Psychotherapy
| Others |
| GTP | Gestalttheoretische Psychotherapie
| Others |
| GTP | Get the Picture
| Others |
| GTP | Get The Planes
| Others |
| GTP | Get This Place
| Others |
| GTP | Ghana Textile Printing
| Others |
| GTP | Global Talent Programme
| Others |
| GTP | Global Technology Partners
| Others |
| GTP | Global Technology Portal
| Others |
| GTP | Global Trademarks Patents
| Others |
| GTP | Global Trader Programme
| Others |
| GTP | Global TransPark
| Others |
| GTP | Global Travel Professional
| Others |
| GTP | Global Tungsten Powders
| Others |
| GTP | Go Text Protocol
| Others |
| GTP | Golden Triangle Regional Airport, Columbus, Mississippi USA
| Others |
| GTP | Gone To Pee
| Others |
| GTP | Good Teaching Practices
| Others |
| GTP | Good Team Play
| Others |
| GTP | Good Tissue Practices
| Others |
| GTP | Good To Police
| Others |
| GTP | Good Toilet Paper
| Others |
| GTP | Good Transplant Practice
| Others |
| GTP | Gouda Tobacco Pipes
| Others |
| GTP | Government Transformation Programme
| Others |
| GTP | GPRS (General Packet Radio Service) Tunneling Protocol
| Others |
| GTP | GPRS Tunnel Protocol
| Others |
| GTP | GPRS Tunneling Protocol
| Others |
| GTP | GPRS Tunnelling Protocol
| Others |
| GTP | Graduate Teacher Program
| Others |
| GTP | Graduate Teacher Programme
| Others |
| GTP | Graduate Teaching Program
| Others |
| GTP | Gran Touring Performance
| Others |
| GTP | Grand Theft Pixel
| Others |
| GTP | Grand Touring Package
| Others |
| GTP | Grand Touring Performance
| Others |
| GTP | Grand Touring Prototype
| Others |
| GTP | Grand Touting Prototype
| Others |
| GTP | Grand Trunk Pacific Railway
| Others |
| GTP | Graphics That Pop
| Others |
| GTP | Greater Tygerberg Partnership
| Others |
| GTP | Greek Travel Pages
| Others |
| GTP | Green Tea Powder
| Others |
| GTP | Green Technologies and Practices
| Others |
| GTP | Green Transport Package
| Others |
| GTP | Green Transport Plan
| Others |
| GTP | Green Tree Python
| Others |
| GTP | Groth and Transformation Plan
| Others |
| GTP | Group Ticker Plant
| Others |
| GTP | Growth and Transformation Plan
| Others |
| GTP | Guanosine Tri Phosphate
| Others |
| GTP | Guanosine Tri-Phosphate
| Others |
| GTP | Guanosine Triphosphate A Precursor
| Others |
| GTP | Guaranteed Technical Particulars
| Others |
| GTP | Guaranteed to Perform
| Others |
| GTP | Guaranteed Trade In Program
| Others |
| GTP | Guide To the Perplexed
| Others |