| Acronym | Definition |
|---|
| OCBN➣Ontario Cancer Biomarker Network (est. 2005; Ontario, Canada) |
| OCBN➣Organisation Commune Benin-Niger des Chemins de Fer et des Transports (French: Benin-Niger Railway and Transport Organization). |
| OCBN➣Organisation Commune Benin-Niger des Chemins de fer et des Transports |
| OCBN➣Oregon Coast Business Network |