HNB may refer to:
Croatian National Bank (Croatian: ) Hasnabad railway station, in India Hatton National Bank, a Sri Lankan bank Heat-not-burn tobacco product, cigarette that heats tobacco to a lower temperature than when a conventional cigarette is burned Herne Bay railway station, in England Hexanitrobenzene, an explosive compound Hockey New Brunswick Home Node B, in wireless telecommunications Huntingburg Airport, in Indiana, United States HNB (band), a South Korean boy band Hill, Norman & Beard, an organ building company in England and Australia
See also H&B (disambiguation)