| GTL | Game Translation and Localization 
| Others |
| GTL | Gas Technologies LLC
| Others |
| GTL | Gas To Liquid
| Others |
| GTL | Gas to liquids
| Others |
| GTL | Gas Turbine Laboratory
| Others |
| GTL | Gas-to-Liquids
| Others |
| GTL | Gateway To Learning
| Others |
| GTL | Gem Trade Lab
| Others |
| GTL | Gene Technologies Laboratory
| Others |
| GTL | Gene Technology Lab
| Others |
| GTL | General Tuple Language
| Others |
| GTL | Generation Template Language
| Others |
| GTL | Genetic Testing Laboratory
| Others |
| GTL | Genetic Toxicology Laboratory
| Others |
| GTL | Geng Tak Laku
| Others |
| GTL | Genomes To Life
| Others |
| GTL | Geometric Time Leverage
| Others |
| GTL | Georgia Tech Lorraine
| Others |
| GTL | Get The Look
| Others |
| GTL | Glitter Toys Lunchables
| Others |
| GTL | Global Teaching Labs
| Others |
| GTL | Global Technology Leader
| Others |
| GTL | Global Tel Link
| Others |
| GTL | Global Telesystem Limited
| Others |
| GTL | Global Testing Laboratories
| Others |
| GTL | Global Transport Label
| Others |
| GTL | Gloyer Taylor Laboratories
| Others |
| GTL | Go Teaching Ladder
| Others |
| GTL | Going Through Life
| Others |
| GTL | Gone To Lunch
| Others |
| GTL | Good Time Lovin
| Others |
| GTL | Good To Last
| Others |
| GTL | Good To Lose
| Others |
| GTL | Grand Timber Lodge
| Others |
| GTL | Grand Tourisme Legere
| Others |
| GTL | Grand Tourisme Luxe
| Others |
| GTL | Graph Template Language
| Others |
| GTL | Great Teacher Largo
| Others |
| GTL | Great Teachers and Leaders
| Others |
| GTL | Grid Table List
| Others |
| GTL | Gross Tare Load
| Others |
| GTL | Group Term Life
| Others |
| GTL | Gt Legends
| Others |
| GTL | Gt Line
| Others |
| GTL | Guarantee Trust Life
| Others |
| GTL | Guarantee Trust Life Insurance Company
| Others |
| GTL | Guide Template Language
| Others |
| GTL | Gun Target Line
| Others |
| GTL | Gun-Target Line
| Others |
| GTL | Gunning Transceiver Logic
| Others |
| GTL | Gym Tan and Learning
| Others |
| GTL | Gym Tan Laundry
| Others |
| GTL | Gym Tan Liquor
| Others |
| GTL | Gym Tan Litigation
| Others |
| GTL | Gym Tan Luca
| Others |
| GTL | Gym Tanning and Laundry
| Others |
| GTL | Gym Tanning Laundry
| Others |
| GTL | Gym Tax Laundry
| Others |