OSB may refer to:
- Orlando Solar Bears
- OSB, Amtrak station code for the Old Saybrook station in Connecticut, United States
- Oklahoma School for the Blind
- OneSavings Bank plc, a UK registered bank that operates under the trade name Kent Reliance
- Open Source Business Alliance, sometimes known as OSB Alliance
- Operation Smiling Buddha, code name for India's first successful test explosion of a nuclear bomb (1974)
- Oberstabsbootsmann, the highest non-commissioned officer rank in the German Navy
- Operation Sovereign Borders, Australian border security operation
- Oracle Service Bus, a software communication system made by Oracle Inc.
- Oregon State Bar, public body that regulates the legal profession in Oregon, United States
- Oriented strand board, an engineered wood
- Orquestra Sinfônica Brasileira, the Portuguese name of the Brazilian Symphony Orchestra
Christianity
- Order of Saint Benedict, Catholic monastic order
- Order of St Benedict (Anglican), Anglican monastic order
- Order of Saint Benedict (Orthodox), Orthodox monastic order
- Orthodox Study Bible, Eastern Orthodox Bible in English that includes the Septuagint
This disambiguation page lists articles associated with the title OSB.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: