The Ror is a caste found mainly in northern India.

Ror, ROR or RoR may also refer to:

People

  • Dalel Singh Ror, Indian volleyball player
  • Ror Wolf (born 1932), German writer and artist

Places

  • ROR, the IATA code for Palau International Airport
  • Ror River, tributary of the Târnava Mică River in Romania

Business

  • Rate of return, profit on an investment over a period of time
  • Ripoff Report, a consumer advocacy website
  • Run of River Power, a Canadian hydro power company

Organizations

  • Reach Out and Read, an American non-profit organization
  • Reaching Out Romania, a Romanian non-governmental charitable organization
  • Regiment Oranjerivier, an armoured regiment of the South African Army
  • Research-on-Research Committee, a nonprofit association
  • Research Organization Registry (ROR.org), a database of research organizations
  • Retraining of Racehorses, an animal welfare organization in the United Kingdom
  • Rhythms of Resistance, a network of political percussion bands

Science and technology

Biology and chemistry

  • R-O-R, general formula for ethers, a class of organic compounds
  • ROR, abbreviation for RAR-related orphan receptor, a family of nuclear receptors in molecular biology
  • ROR, abbreviation for receptor tyrosine kinase-like orphan receptors, a family of cell surface receptors
  • ROR, abbreviation for risk of recurrence

Computing

  • Resources of a Resource, an XML format for describing common website objects to search engines
  • Rigs of Rods, a multi-simulation game which uses soft-body physics
  • ROtate Right, a common circular shift instruction in assembly language
  • Ruby on Rails, a server side web application framework

Other uses

  • Review of Religions, a comparative religious magazine in print since 1902
  • Rochester railway station, Victoria, Australia
  • RoR, common police shorthand for Released on own Recognizance
  • RoR, common abbreviation for manga series Record of Ragnarok
  • RoR, common abbreviation for The Lord of the Rings Online: Riders of Rohan
  • Rule of Rose, a 2006 Japanese video game
  • Run-of-the-river hydroelectricity
  • Risk of Rain, a 2013 video game