OCR
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OCR may refer to:
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Science and technology
- Optical character recognition, conversion of images of text into characters
- Organically moderated and cooled reactor, a type of nuclear reactor
- Oxidizable carbon ratio dating, a method of absolute dating
- Transvaginal oocyte retrieval, a technique used in vitro fertilization
- Oil control ring, a piston ring
- Over consolidation ratio, a consolidation measurement in geotechnical engineering
Offices of civil rights
- Office for Civil Rights, U.S. Department of Education
- State Office of Civil Rights, United States Department of State
- GSA Office of Civil Rights, General Services Administration
- HHS Office for Civil Rights, United States Department of Health and Human Services
- DOJ Office for Civil Rights, Office of Justice Programs
Economics
- Official cash rate, the interest rate paid by banks in the overnight money market
- Optimum currency region, a theoretical optimal area where one currency would make most benefit
Other uses
- Original cast recording, a recording of a stage musical featuring the show's original cast
- Otago Central Railway, now a heritage railway in Otago, New Zealand
- Ottawa Central Railway a Canadian Shortline owned by CN Rail
- OverClocked ReMix, an organization and website dedicated to preserving and paying tribute to video game music through re-orchestration and reinterpretation
- Oxford, Cambridge and RSA Examinations, an exam board in England, Wales and Northern Ireland
- Obstacle course racing