OCB
- B4.Da.$$
- Billy Ze Kick et les Gamins en Folie
- Malaa
- O.c.b. (album)
- OCB mode
- Old Country Buffet
- Oligoclonal bands
- Operations Coordinating Board
- Orange Catholic Bible
- Ordinary course of business
- Organizational citizenship behavior
- Orient Commercial Joint Stock Bank
- Orlando City B
- Republic Tobacco
- The Oxford Companion to Beer
- Óquei Clube de Barcelos