HPA

HPA may refer to:

Organizations

 * Harry Potter Alliance, a charity
 * Halifax Port Authority, Canada
 * Hamburg Port Authority, Germany
 * Hawaii Preparatory Academy, a school in Hawaii, US
 * Health Protection Agency, UK
 * Heerespersonalamt, the German Army Personnel Agency 1920-1944
 * Hollywood Post Alliance, an American trade organization
 * Houston Peace Academy of the Islamic Education Institute of Texas, US
 * Hurlingham Polo Association, UK polo governing body
 * HPA Toucan human-powered aircraft built by Hertfordshire Pedal Aeronauts

People

 * Hans Peter Anvin (born 1972), Swedish computer programmer
 * Howlin' Pelle Almqvist (Born 1978), Swedish lead singer of garage rock band The Hives

Science

 * Hectopascal (hPa), a unit of pressure
 * Human platelet antigen
 * Human Protein Atlas
 * Hydrogen pinch analysis
 * Hypothalamic–pituitary–adrenal axis in physiology

Technology

 * High-performance addressing, in LCD displays
 * Host protected area of computer data storage
 * Human-powered aircraft
 * High-pressure air, in paintball guns
 * Horizontal Pod Autoscaling, the Kubernetes autoscaler.

Transport

 * Honor Oak Park railway station (National Rail station code), in London, England
 * Lifuka Island Airport, in Tonga

Other uses

 * Highland Prince Academy de Mexico, a group of schools in Tijuana
 * Hydraulic Project Approval, an approval for hydraulic projects granted by the Washington State Department of Fish and Wildlife (WDFW)