| Acronym | Definition |
|---|
| GTHC➣Go to Hell Carolina (Duke University) |
| GTHC➣Grand Traverse Hiking Club (Michigan) |
| GTHC➣Galveston and Texas History Center (manuscript repository) |
| GTHC➣Gateway Treasure Hunters Club (metal detecting club; Wareham, MA) |
| GTHC➣Golden Triangle Homebrew Club (Texas) |
| GTHC➣Greater Toledo Housing Coalition (Ohio) |