HPA
HPA stands for:
- Hamburg Port Authority
- Halifax Port Authority, see Halifax Port Authority
- Trade policy department part of the GDR Foreign Ministry (each GDR embassy also had its own HPA)
- Main equipotential bonding
- Health Protection Agency , UK health authority
- Army Personnel Office
- Alternative practitioner candidate, see alternative practitioners
- Hierarchical Path Finding A *
- High performance addressing
- High power amplifier
- University examination office
- Host Protected Area
- High performance aircraft
- High Performance Aircraft GmbH & Co. KG, see HPA TT62
- Human platelet antigens, of which at least eight different systems are known, see Thrombocytic Alloantigens
- Human powered aircraft
- Hurlingham Polo Association
- Hyperphenylalaninemia
- Hypothalamic-pituitary-adrenocortical axis : engl. Term for the hypothalamic-pituitary-adrenal axis
- Lifuka Island Airport (IATA code), Ha'apai Airport , Tonga
- Pearl Airways (ICAO code), former Haitian airline
HPA as a distinguishing mark on license plates:
- Poland: Police Headquarters
hPa stands for:
- Hectopascal, see Pascal (unit)
