PGI may refer to:

Transportation

  • Parking guidance and information, signs and other indicators to assist in parking a car
  • PGI, IATA code for Chitato Airport in Angola

Science

  • PGI<sub>2</sub> (Prostacyclin), a chemical which regulates blood clotting
  • Phosphoglucose isomerase, alternate name for Glucose-6-phosphate isomerase
  • Protected geographical indication, one of the three protected denominations for agricultural products of the European Union

Organizations

  • PGI (The Portland Group, Inc.), a former software company providing compilers and programming tools, now part of Nvidia
  • PGI Management, currently known as Pas Grau International, an Andorra-based ski operation management company
  • Communion of Churches in Indonesia (, PGI), a fellowship organisation of Protestant churches in Indonesia
  • Philippine Geothermal Production Company (formerly Philippine Geothermal, Inc.), a Philippine energy production subsidiary
  • Piranha Games Inc., a Canadian video game developer
  • Pontefract General Infirmary, the former name for Pontefract Hospital
  • Postgraduate Institute of Medical Education and Research, a medical institute and research centre in Chandigarh, India
  • Project for Good Information, American political group
  • Pyrotechnics Guild International, association of professional and amateur fireworks enthusiasts