ORAC or Orac may refer to:
- Oxygen radical absorbance capacity, a scalar value derived in the laboratory for comparing the antioxidant content of different foods or nutritional supplements
- Office of the Registrar of Aboriginal Corporations, former name of the Australian government agency now called Office of the Registrar of Indigenous Corporations (ORIC)
- Orac (Blake's 7), a fictional computer from the science fiction television series Blake's 7
- Orac (MD program), a classical molecular dynamics program for solvated biomolecules
- Orac, Leova, a commune in Moldova
- Orac, an early poker-playing computer program developed by Mike Caro
- ORAC, Wilhelm Reich's abbreviation for his orgone accumulator
| This disambiguation page lists articles associated with the title ORAC.
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