HCA

HCA may refer to:

Courts

• High Court of Australia, the supreme court in the Australian court hierarchy and the final court of appeal in Australia

Organizations

Europe

• Hall–Carpenter Archives, an archive of materials related to gay activism in Britain
• Heidelberg Center for American Studies, an institute at Heidelberg University, Germany
• Helsinki Citizens' Assembly, a nongovernmental organization dedicated to peace, democracy and human rights in Europe
• Heritage Crafts Association, a UK charity that helps to preserve traditional hand crafts
• Homes and Communities Agency, a UK non-departmental public body

United States

• Heritage Christian Academy (disambiguation), several private Christian schools:
  • Heritage Christian Academy (Fort Collins, Colorado)
  • Heritage Christian Academy (Texas)
  • Heritage Christian Academy (Kansas)
  • Heritage Christian Academy (Minnesota)
  • Heritage Christian Academy (New Jersey)
• Hollywood Critics Association, a film critic group in Los Angeles, California
• Hopkins Consulting Agency, a student-run technology consulting company at The Johns Hopkins University
• Hospital Corporation of America, an operator of health care facilities

Other organizations

• Hillcrest Christian Academy, an independent primary school in South Africa
• Holy Child Academy, a Catholic school in Pagadian City, Philippines

Science and technology

• Heterocyclic amine, a type of chemical compound containing at least one heterocyclic ring
• Hexachloroacetone, an organic compound also called hexachloropropanone or perchloroacetone
• Hierarchical cluster analysis, a method of cluster analysis used in data mining
• High content analysis, a laboratory microscopic technique
• Host channel adapter, in electronic communications
• Hydroxycitric acid
• Holloway Cut Advisor, a method of rating brilliant cut diamonds
• Hot Cranking Amps, a measurement of the current provided by a car battery
• Hydrographic Commission on Antarctica

Other uses

• HCA (classification), a para-cycling classification
• Healthcare Assistant, a UK name for a job class of medical paraprofessionals
• Hennepin Center for the Arts, a building in Minneapolis, Minnesota, US
• Historical cost accounting