Others
- OBC (secret society), a secret society at the University of North Carolina at Asheville
- Order of British Columbia, a Canadian decoration
- Order of Buddhist Contemplatives, a Soto Zen organization
- Osaka Broadcasting Corporation (Radio Osaka)
- Other Backward Class in India's caste system used by the Central Government of India to classify some of its citizens based on their social and economic conditions
- Ottmar Beckman Cars AB
- Obscurantist Blank Chalcanthite, an up-and-coming teenage techno and house music producer
- Outside back cover, in publishing
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