OOC may refer to:
- Out of control
- 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
- Occupational Outlook Handbook, publication by U.S. Department of Labor
Old Oak Common, an area of London
- Old Oak Common TMD, railway depot in that area
- Oman Oil Company, a national oil investment company of Oman
- Out of combat, a combat concept in games.
Usage examples of "ooc".
The little girl, the smaller of the two, was ooc ONE: Will Henry Lee 3 carefully holding a box tied with string.