| HPN | Haiti Press Network
| Others |
| HPN | Happen
| Others |
| HPN | Harrison Purchase New
| Others |
| HPN | Hayward Promise Neighborhood
| Others |
| HPN | Header Panel
| Others |
| HPN | Health Plan of Nevada
| Others |
| HPN | Health Professions Network
| Others |
| HPN | Health Provider Network
| Others |
| HPN | Healthcare Purchasing News
| Others |
| HPN | Heavy Poly Nylon
| Others |
| HPN | Heritage Provider Network
| Others |
| HPN | Herniated Pulposus Nucleosis
| Others |
| HPN | High Performance Network
| Others |
| HPN | High Performance Neurofeedback
| Others |
| HPN | High Performance Nutrition
| Others |
| HPN | High Pressure NBR
| Others |
| HPN | Highest Possible Number
| Others |
| HPN | Hispanic Policy Network
| Others |
| HPN | Home Parenteral Nutrition
| Others |
| HPN | Home Phone Network
| Others |
| HPN | Home Phoneline Networking
| Others |
| HPN | Hospitality Performance Network
| Others |
| HPN | House of Public Notice
| Others |
| HPN | Housing Partnership Network
| Others |
| HPN | Human Progress Network
| Others |
| HPN | Hypertension
| Others |
| HPN | Westchester County, New York City, New York USA
| Others |