HPP
# 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
