HPJ
| Acronym | Definition |
|---|---|
| HPJ | High Plains Journal (US farm and ranch news publication) |
| HPJ | Help Project |
| HPJ | Headphone Jack |
| HPJ | High-Performance Jacket (ammunition) |
| HPJ | Half Price Jewellery |
| HPJ | Human Pancreatic Juice |
| HPJ | Hesse Page Journal (University of California, Santa Barbara) |