| Acronym | Definition |
|---|
| GTT➣Glucose Tolerance Test |
| GTT➣Gruppo Torinese Trasporti |
| GTT➣Gone To Texas |
| GTT➣Global Telecom & Technology (various locations) |
| GTT➣Global Tracking Trigger |
| GTT➣Generic Translation Table |
| GTT➣Gt Turbo |
| GTT➣Global Title Translations |
| GTT➣Global Title Translation |
| GTT➣Gateway to Technology (educational program) |
| GTT➣Guttae (Latin: Drops) |
| GTT➣Geiger Tube Telescope |
| GTT➣Google Translation Toolkit (software) |
| GTT➣Guaranteed Turn Times (Oasis) |
| GTT➣Graphics Translation Table |
| GTT➣Gavin's Tips and Tricks (video episodes) |
| GTT➣Grand Trunk Trailblazers (Massachusetts) |
| GTT➣Gemeenschappelijke Trefwoorden-Thesaurus |
| GTT➣GlobalTouch Telecom, Inc. |
| GTT➣Global Text and Total Conversation Services |
| GTT➣Government Technical Test |