Or

Or or OR may refer to:

Film and television

 * "O.R.", a 1974 episode of M*A*S*H
 * Or (My Treasure), a 2004 movie from Israel (Or means "light" in Hebrew)

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) (lit. 'light'), 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

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, a U.S. state (by postal abbreviation)
 * Orange Line (Washington Metro)

India

 * Odisha formerly Orissa, a state of India

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, Denmark (disambiguation), military personnel in all branches of the Danish military that are not officers by the NATO system of ranks and insignia
 * Other ranks (UK), personnel who are not commissioned officers, usually including non-commissioned officers (NCOs), in militaries of many Commonwealth countries

Other uses

 * Or (name), 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