HPA

HPA may refer to:

Organizations

• Harry Potter Alliance, an charity based around Harry Potter fandom
• Halifax Port Authority, a port authority in Canada
• Hamburg Port Authority, the port authority for the Port of Hamburg, Germany
• Health Protection Agency, in the United Kingdom
• Heerespersonalamt, the German Army Personnel Agency, operating from 1920 to 1944
• Hollywood Post Alliance, an American trade organization
• Hurlingham Polo Association, the governing body for polo in the United Kingdom
• Hertfordshire Pedal Aeronauts, builders of the HPA Toucan human-powered aircraft

People

• Hans Peter Anvin (born 1972), often abbreviated hpa, Swedish computer programmer

Science

• Hectopascal (hPa), a unit of pressure
• Heteropoly acid
• Human physical appearance, in anthropology
• Human platelet antigens, in clinical medicine
• Human Protein Atlas, a biological database
• Hydrogen pinch analysis
• Hypothalamic-pituitary-adrenal axis in physiology

Technology

• High-Performance Addressing, a LCD display technology
• High Power Amplifier
• Host protected area, an area on computer data storage
• Human-powered aircraft
• High Pressure Air, gas propulsion in paintball guns

Other uses

• Hawaii Preparatory Academy
• Highland Prince Academy de Mexico, a group of schools in Tijuana, Mexico
• Lifuka Island Airport, in Tonga