| Acronym | Definition |
|---|
| HBPP➣Humboldt Bay Power Plant |
| HBPP➣Human Brain Proteome Project (Germany) |
| HBPP➣Home Builder Purchasing Program (various locations) |
| HBPP➣Harcourt Brace Professional Publishing (San Diego, CA) |
| HBPP➣Harry Browne's Permanent Portfolio (finance) |
| HBPP➣Heparin Binding Placental Protein |