| Acronym | Definition |
|---|
| OCB | Optically Compensated Bend (liquid crystal display) |
| OCB | Organização das Cooperativas Brasileiras (Portuguese: Organization of Brazilian Cooperatives) |
| OCB | Object and Class Browser |
| OCB | Offset Codebook |
| OCB | Organizational Citizenship Behavior |
| OCB | Office of Cuba Broadcasting (Radio/TV Marti) |
| OCB | Ontario Child Benefit (Ontario, Canada) |
| OCB | Old Country Buffet (restaurant) |
| OCB | Overseas Corporate Body (India; finance) |
| OCB | Oil Circuit Breaker |
| OCB | Office of Community Beautification (Los Angeles, CA) |
| OCB | Organizational Citizenship Behaviour |
| OCB | Organizational Capacity Building (various locations) |
| OCB | Organized Crime Bureau |
| OCB | Obsessive Compulsive Behavior |
| OCB | Original Carton Box |
| OCB | O Co Biega (Polish) |
| OCB | Oligoclonal Band |
| OCB | Oregon Commission for the Blind |
| OCB | Optical Coherence Biometry (ophthalmology) |
| OCB | Opera Company of Brooklyn (New York) |
| OCB | Outgoing Calls Barred (Cisco) |
| OCB | Österreichischer Club für Beauceron (Austria) |
| OCB | Odet-Cascadec-Bolloré (smoking paper manufacturer; France) |
| OCB | Operations Coordination Board (US interagency foreign policy board) |
| OCB | Open Control Block (operating systems) |
| OCB | Operations Centers Branch |
| OCB | Operator Certification Board |
| OCB | Orlando City Beat (website) |
| OCB | Oregon Country Beef |
| OCB | Original Can of Beans (geocaching) |
| OCB | Optically Controlled Birefringence (liquid crystal display) |
| OCB | Offshore Certification Bureau (United Kingdom) |
| OCB | Orlando Concert Band |
| OCB | Order of the Crimson Blades (gaming guild) |
| OCB | Orthodox Christian Brotherhood |
| OCB | Olney Concert Band |
| OCB | Oldsmar Community Band (Oldsmar, FL) |
| OCB | Order of Contemporary Benedictines |