BNO may refer to: British National (Overseas) British National (Overseas) passport Baksan Neutrino Observatory BNO News, a news agency Boys Night Out (band), an emo/post-hardcore band from Burlington, Ontario, Canada. Burns Municipal Airport in Burns, Oregon, which have FAA identifier BNO The Beano comic Building network operator – in the UK the party responsible for pre-meter electrical distribution within a multi-occupancy building Bowels not open, i.e. constipation