HNB

HNB may refer to:


 * Croatian National Bank (Croatian: Hrvatska narodna banka)
 * 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