OCA or Oca may refer to:

Places and jurisdictions

  • The ancient town and bishopric Oca in Asia Minor (present Asia Turkey), now a Latin Catholic titular see
  • The former Spanish Oca, modern Villafranca Montes de Oca, also see of a medieval bishopric (Auca), now a Latin Catholic titular see
  • Oca (river), a tributary of the Ebro, Spain, having its source in the comarca of Montes de Oca
  • Côte d'Azur Observatory, French name: Observatoire de la Côte d'Azur
  • Cerro Armazones Observatory
  • Orange County Airport, several airports in the United States
  • Oregon Coast Aquarium
  • Iruña de Oca, Spanish municipality

Business and society

  • Odisha Cricket Association, state cricket body of BCCI
  • Open Content Alliance, consortium of organizations contributing to a publicly accessible archive of digitized texts
  • Optimum currency area, geographical region which efficiently shares a single currency
  • Oregon Citizens Alliance, conservative Christian political activist organization
  • Organic Consumers Association, consumer protection and organic agriculture advocacy group
  • Organization of Chinese Americans, national Asian Pacific American social and civic organization
  • Oxford Conservative Association, student political organisation at the University of Oxford

Education

  • Oakland Charter Academy, a member school of Amethod Public Schools
  • Ontario College of Art, former name for OCAD University
  • Open College of the Arts

Government

  • Court of Appeal for Ontario, frequently referred to as the Ontario Court of Appeal
  • Office of Consumer Affairs (Canada), government agency of Industry Canada
  • Olympic Council of Asia, governing body of sports in Asia
  • Organised and Financial Crime Agency of New Zealand, formerly known as the Organised Crime Agency
  • Organized Crime Agency of British Columbia (1999–2004), predecessor of the Combined Forces Special Enforcement Unit
  • Original Classification Authority
  • Outback Communities Authority, an authority providing municipal services to communities in Outback South Australia

Medicine

  • OCA1, a gene associated with oculocutaneous albinism
  • Oculocutaneous albinism, a form of albinism involving the eyes and skin
  • ortho-Chloroamphetamine, an amphetamine

Religion

  • Orthodox Church in America, autocephalous Eastern Orthodox Church in North America
  • Oxford Capacity Analysis, also known as the American Personality Analysis, a personality test used in Scientology

Technology

  • Odoo Community Association, an organization supporting the Odoo (formerly OpenERP) community
  • Open Control Architecture, network control protocol for audio and video devices (AES70)
  • Optically Clear Adhesives, bonding agents used for light-emitting devices like OLED and LEC; see Liquid optically clear adhesive
  • Oracle Certified Associate, a level of the Oracle Certification Program

Other uses

  • Oca (structure), a kind of Brazilian indigenous dwelling
  • Oxalis tuberosa, a South American tuber known as oca in Spanish
  • Offensive counter air, military term
  • Old Croton Aqueduct, especially when referring to the hiking trail
  • Open coloring axiom in mathematics
  • Operation Crossroads Africa, a volunteer organization
  • Optical clearing agent, substance used in microscopy to make samples transparent
  • Orange County Astronomers, an amateur astronomy club based in Orange County, California

See also

  • Oka