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 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) (), 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) This is a list of digraphs used in various Latin alphabets. Capitalisation involves only the first letter (''ch'' becomes ''Ch'') unless otherwise stated (''ij'' becomes ''IJ''). Letters with diacritics are arranged in alphabetic order accordin ...

, in the Uzbek alphabet * Or (letter) (or ''forfeda''), in Ogham, the Celtic tree alphabet * Odia language, an ancient Indo-Aryan tongue spoken in East India (ISO 639) * Or, an English grammatical conjunction * -or, an English

agent noun In linguistics, an agent noun (in Latin, ) is a word that is derived from another word denoting an action, and that identifies an entity that does that action. For example, "driver" is an agent noun formed from the verb "drive". Usually, ''derive ...

suffix * Or, a digraph in Taiwanese's Daī-ghî tōng-iōng pīng-im phonetic transcription

Places

Europe

Or (Crimea) The Isthmus of Perekop, literally Isthmus of the Trench ( uk, Перекопський перешийок; Romanization of Ukrainian, transliteration: ''Perekops'kyy pereshyyok''; russian: Перекопский перешеек; Romanization of ...

, 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)

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 Operation or Operations may refer to: Arts, entertainment and media * ''Operation'' (game), a battery-operated board game that challenges dexterity * Operation (music), a term used in musical set theory * ''Operations'' (magazine), Multi-Man ...

, 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) For non-officer ranks in Denmark, see: *Ranks and insignia of Royal Danish Army *Ranks and insignia of Royal Danish Navy *Ranks and insignia of Royal Danish Air Force The Royal Danish Air Force ranks follow the NATO system of ranks and insignia, a ...

, military personnel in all branches of the Danish military that are not officers by the NATO system of ranks and insignia *

Other ranks (UK) Other ranks (ORs) in the Royal Marines, British Army, Royal Air Force, and in the armies and air forces of many other Commonwealth countries and the Republic of Ireland, are those personnel who are not commissioned officers, usually including no ...

, 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