OOC may refer to:
Out of context, logical fallacy Out of character, breaking character in theatrics and roleplay Original Omnibus Company, a range of scale-model Buses and Trams released by Corgi Classics Old Oak Common, an area of London Old Oak Common TMD, railway depot in that area Old Oak Common railway station, a planned railway station in that area Oman Oil Company, a national oil investment company of Oman Order of Canada Organ-on-a-chip
Computer science Object-Oriented Code, programming paradigm
See also Out of Control (disambiguation)