| Acronym | Definition |
|---|
| HPP | High Pressure Processing (cold pasteurization technique) |
| HPP | HTTP (Hypertext Transfer Protocol) Parameter Pollution (cyber attacks) |
| HPP | High Pressure Pasteurization |
| HPP | Hurricane Preparedness Plan (various organizations) |
| HPP | Hypophosphatasia (bone disease) |
| HPP | Hamiltonian Path Problem (graph theory) |
| HPP | Hazard Prevention Program (Canada) |
| HPP | Hypno-Peripheral Processing |
| HPP | Header C++ |
| HPP | Hp Partner Portal |
| HPP | Hp Printer |
| HPP | High Performance Package |
| HPP | Head Phones President (band) |
| HPP | Hospital Preparedness Program |
| HPP | Health Promotion Practice (journal) |
| HPP | High Performance Pharmacy (standards) |
| HPP | Hydro Power Plant |
| HPP | Health Privacy Project |
| HPP | Home Purchase Plan (various locations) |
| HPP | Health Promotion Program |
| HPP | Hazardous Process Piping (Uniform Mechanical Code) |
| HPP | Hawaiian Paradise Park |
| HPP | Human Pancreatic Polypeptide |
| HPP | Historic Preservation Plan |
| HPP | Handset Protection Plan |
| HPP | Homogeneous Poisson Process |
| HPP | Homebuyer Protection Plan |
| HPP | Hereditary Pyropoikilocytosis |
| HPP | Heat Pump Programme (International Energy Agency) |
| HPP | High Performance Polymer |
| HPP | Housing Preservation Project |
| HPP | Hyperkalemic Periodic Paralysis |
| HPP | Hydro Production Partner (now Bilfinger Berger Industrial Services) |
| HPP | Health Professionals Program |
| HPP | Hewlett Packard Pavilion |
| HPP | HIV Prevention Program |
| HPP | Heat Pipe Performance |
| HPP | Homeless Persons Program (Australia) |
| HPP | Households Passed (mass market broadband) |
| HPP | Hernieuwde Progressieve Partij (Renewed Progressive Party - Suriname) |
| HPP | High Priority Program |
| HPP | Honda Power Port |
| HPP | High Price Point (sales; various companies) |
| HPP | Hub Protocol Processor |
| HPP | High-Pulse Power |
| HPP | C++ Header File Extension |
| HPP | Hydrology Pre- and Postprocessor |
| HPP | Hypercube Parallel Processing |
| HPP | High Power Plant |
| HPP | High Point of Pavement (plot plans-grade elevatio) |