Oc or OC may refer to:
Oceania (UK: , US: (listen), ) is a geographic region comprising Australasia, Melanesia, Micronesia and Polynesia.
Occam's razor (also Ockham's razor or Ocham's razor; Latin: lex parsimoniae "law of parsimony") is the problem-solving principle that the simplest solution tends to be the correct one.
An ocean (from Ancient Greek Ὠκεανός, transc. Okeanós) is a body of saline water that composes much of a planet's hydrosphere.
Occupational safety and health (OSH), also commonly referred to as occupational health and safety (OHS), occupational health, or workplace health and safety (WHS), is a multidisciplinary field concerned with the safety, health, and welfare of people at work.
The October Revolution (Russian: Октя́брьская револю́ция, tr. Oktyabr'skaya revolyutsiya, IPA: [ɐkˈtʲabrʲskəjə rʲɪvɐˈlʲutsɨjə]), officially known in Soviet literature as the Great October Socialist Revolution (Вели́кая Октя́брьская социалисти́ческая револю́ция, Velikaya Oktyabr'skaya sotsialističeskaya revolyutsiya), and commonly referred to as Red October, the October Uprising, the Bolshevik Revolution, or the Bolshevik Coup, was a revolution in Russia led by the Bolsheviks and Vladimir Lenin that was instrumental in the larger Russian Revolution of 1917. It took place with an armed insurrection in Petrograd on 7 November (25 October, O.S.) 1917.
Occitan (English: ; Occitan: [utsiˈta]; French: [ɔksitɑ̃]), also known as lenga d'òc (Occitan: [ˈleŋɡɔ ˈðɔ(k)] (listen); French: langue d'oc) by its native speakers, is a Romance language.
The Allied occupation of Japan at the end of World War II was led by General Douglas MacArthur, the Supreme Commander of the Allied Powers, with support from the British Commonwealth.
The Oculus Rift is a virtual reality headset developed and manufactured by Oculus VR, a division of Facebook Inc., released on March 28, 2016.