BNO

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