HPP

HPP may refer to:

Medicine

 * Allopurinol, a medication
 * Hereditary pyropoikilocytosis, a blood disorder
 * HPP epoxidase, an enzyme
 * Hypokalemic periodic paralysis, a muscle disease
 * Hypophosphatasia, a bone disease
 * Hypoxia preconditioned plasma

Other uses

 * Hardy-Pomeau-Pazzis model, in computational fluid dynamics
 * Harrington Park Press, an American publisher
 * Harris Performance Products, a British motorcycle racing/parts manufacturer
 * Hawaiian Paradise Park, a community on the island of Hawaii
 * Head Phones President, a Japanese metal band
 * Health Partners Plans, a health insurance network
 * High Performance Programme, in cricket
 * High pressure processing of food
 * Holme Pierrepont National Watersports Centre, in England
 * Human Proteome Project
 * Hydroelectric power plant
 * Hydrometallurgy Pilot Plant, in Egypt
 * C++ Header file
 * Headturn Preference Procedure, in statistical language acquisition
 * Honda Power Port, a type of two-stroke power valve system
 * Handan East railway station, China Railway telegraph code HPP
 * Hosted Payment Page (also known as Hosted Checkout), used in ecommerce for secure checkouts.
 * HTTP parameter pollution