OCBN
| 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 |