| Acronym | Definition |
|---|
| GPTC➣Gas Piping Technology Committee |
| GPTC➣Great Pacific Trading Company (Grants Pass, OR) |
| GPTC➣Great Plains Technology Center |
| GPTC➣Great Plains Theatre Conference (Omaha, NE) |
| GPTC➣Guinea-Pig Taenia Coli |
| GPTC➣Gary Public Transportation System |