GLPA
| Acronym | Definition |
|---|---|
| GLPA | Great Lakes Pilotage Authority (Canada) |
| GLPA | Great Lakes Planetarium Association |
| GLPA | Gigalitres per Annum (measurement) |
| GLPA | Greenwood-Lander Performing Arts (South Carolina) |
| GLPA | Georgia Legal Professionals for Animals (est. 2002) |
| GLPA | Greater Lynn Photographic Association (Lynn, MA) |
| GLPA | Gun Lake Protective Association |