| Acronym | Definition |
|---|
| GDH➣Gap Diffie Hellman |
| GDH➣General Data Handler |
| GDH➣Glucose Dehydrogenase |
| GDH➣Global Digital Heritage (St. Petersburg, FL) |
| GDH➣Group Diffie-Hellman |
| GDH➣Gove District Hospital (Australia) |
| GDH➣Geothermal District Heating (alternative energy) |
| GDH➣Great Dark Horde (Society for Creative Anachronism) |
| GDH➣Gonzo Digimation Holdings (Tokyo, Japan marketing company) |
| GDH➣Gestão do Desempenho Humano (Portuguese: Management of Human Performance; Brazil) |
| GDH➣Gas Ducted Heating (Australian property sales) |
| GDH➣Ground Data Handling |