Or or OR may refer to:

Arts and entertainment

Film and television

  • "O.R.", a 1974 episode of M*A*S*H
  • Or (My Treasure), a 2004 film

Music

  • Or (album), a 2002 album by Golden Boy with Miss Kittin
  • *O*R, the original title of Olivia Rodrigo's album Sour, 2021
  • "Or", a song by Israeli singer Chen Aharoni in Kdam Eurovision 2011
  • Or Records, a record label
  • Organized Rhyme, a Canadian hip-hop group featuring Tom Green

Businesses and organizations

  • Or (political party) (), Israel
  • OR Books, an American publisher
  • Owasco River Railway, Auburn, New York, U.S. (by reporting mark)
  • TUI fly Netherlands, formerly Arke, a Dutch charter airline (by IATA designator)

Language and linguistics

  • Or (digraph), in the Uzbek alphabet
  • Or (letter) (or forfeda), in Ogham, the Celtic tree alphabet
  • Odia language, a language spoken in East India (ISO 639)
  • Or, an English grammatical conjunction
  • -or, an English agent noun suffix
  • Or, a digraph in Taiwanese's Daī-ghî tōng-iōng pīng-im phonetic transcription

Places

Europe

  • Or (Crimea), an isthmus of the Black Sea
  • Or (river), a tributary of the Ural
  • Province of Oristano, Italy (by vehicle code)

United States

  • Oregon state postal abbreviation
  • Orange Line (Washington Metro)

India

  • Odisha, formerly Orissa, a state of India

Science, technology, and mathematics

Computing and mathematics

  • Or (logic), logical disjunction
  • Exclusive or (XOR), a logical operation
  • Bitwise OR, an operator in computer programming, typically notated as or or |
  • The short-circuit operator or, notated or, ||, or or else
  • Elvis operator, an operator in computer programming that returns its first operand if its value is considered true, and its right operand if not
  • Null coalescing operator, an operator in computer programming
  • Onion routing, anonymous networking technique (also Onion Router)
  • OR gate, an integrated circuit in electronics
  • Object–relational mapping

Other uses in science and technology

  • Odds ratio, a measure of effect size in statistics
  • OR, a previous title of the Journal of the Operational Research Society
  • Operating room, in medicine
  • Operations research, or operational research, in British English
  • Operations readiness

Titles and ranks

  • Official receiver, a statutory office holder in England and Wales
  • Order of Roraima of Guyana, an award of the Republic of Guyana
  • Other ranks, personnel who are not commissioned officers, usually including non-commissioned officers (NCOs), in militaries of many Commonwealth countries

Other uses

  • Or (name), a list of people with the Hebrew given name and surname
  • Official Records of the American Civil War
  • Olympic record, a term for the best performances in Olympic Games
  • Or (heraldry), a gold or yellow tincture (from the French word for "gold")
  • Own recognizance, the basis for releasing someone awaiting trial without bail

See also

  • '0r' (zero r), meaning "no roods", in old measurements of land area
  • And (disambiguation)
  • Oar (disambiguation)
  • Ore (disambiguation)
  • Orr (disambiguation)
  • Either/Or (disambiguation)