OCTB Views 6 meanings found OCTB most frequently identifies government units tasked with combating organized crime and triads, while it also labels community initiatives like Orange County’s time‑bank and tourism bureaus in Osaka. Miscellaneous Optically Compensated Tunable Birefringence Community Osaka Convention Tourism Bureau Governmental Organised Crime and Triad Bureau Organized Crime Triad Bureau Organized Crime and Triad Bureau Business Orange County Time Bank