Or

Or may be:

• a grammatical conjunction
• a logical operation indicating logical disjunction depicted as |, ∨, or simply or

OR, O.R. or or may also refer to:

• O.R. or OR, post-nominal letters of the Order of Roraima of Guyana, an award of the Republic of Guyana
• Or (album), a 2002 album by Golden Boy with Miss Kittin
• "Or", a song by Israeli singer Chen Aharoni in Kdam Eurovision 2011
• Or (heraldry), a gold or yellow tincture (from the French word for "gold")
• Or (Crimea)
• Or (My Treasure), a 2004 movie from Israel (Or is "light" in Hebrew)
• Oregon, a state in the United States, whose postal abbreviation is "OR"
• Organized Rhyme, a Canadian hip-hop group featuring Tom Green
• OR gate, an integrated circuit in electronics
• Or Records, a record label
• Bitwise OR, an operator in computer programming
• Odds ratio, a measure of effect size in statistics
• Official Receiver, a statutory office holder in England and Wales
• Official Records of the American Civil War
• Old Roedenian, a former pupil of Roedean School in England or Roedean School (South Africa)
• Old Rugbeian, a former pupil of Rugby School
• Olympic record, a term for the best performances in Olympic Games
• Operating room
• Operational research (operations research)
• OR, a previous title of the Journal of the Operational Research Society
• Province of Oristano's vehicle code
• Oriya language's ISO 639 alpha-2 code
• Other ranks
• Owasco River Railway's reporting marks
• Own Recognizance, the basis for releasing someone awaiting trial without bail
• "O.R.", episode in Series 3 of M*A*S*H
• Arkefly, IATA airline designator
• Or, a digraph in the Taiwanese phonetic transcription system
• '0r' (zero r) may mean "no roods", in old measurements of land area
• Onion routing, anonymous networking technique (also Onion Router)