Or
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 Rodrigos 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, an ancient Indo-Aryan tongue spoken in East India (ISO 639)
Or, an English grammatical conjunction
-or, an English agent noun suffix
Or, a digraph in Taiwaneses 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, 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, 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

See also
0r (zero r), meaning "no roods", in old measurements of land area
And (disambiguation)
OAR (disambiguation)
Ore (disambiguation)
Either/Or (disambiguation)