OCA

The Oca (Oxalis tuberosa), is a starchy, edible tuber, grown in South America.

OCA or Oca may also refer to:

• Oca a tributary of the Ebro, Spain, having its source in the comarca of Montes de Oca.

In business and politics:

• 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
• OCA, Inc., (Orthodontic Centers of America), defunct provider of practice management services to orthodontists
• Oxford Conservative Association, student political organisation at the University of Oxford

In government:

• Office of Consumer Affairs , government agency of Industry Canada
• Olympic Council of Asia, governing body of sports in Asia
• Court of Appeal for Ontario, frequently referred to as the Ontario Court of Appeal or OCA
• 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

In religion:

• The Orthodox Church in America
• Oxford Capacity Analysis, also known as the American Personality Analysis, the famous......
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