OCR or ocr may refer to:
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, a heritage railway in Otago, New Zealand Ottawa Central Railway, a Canadian short-line railroad operating from 1998 to 2008 OverClocked ReMix, an organization and website dedicated to preserving and paying tribute to video game music through re-orchestration and reinterpretation Cambridge OCR, an exam board in England, Wales and Northern Ireland Obstacle course racing
See also OCR-A, a font designed to simplify character recognition OCR-B