HBN

HBN may refer to:

Science

 * Haemoglobin N (HbN), a globin protein
 * Hexagonal boron nitride
 * Jacob Hübner (1761–1826), German entomologist

Other uses

 * HBN Law, a law firm in Curaçao
 * Healthy Building Network, an American green building non-profit
 * Heiban language, spoken in Sudan
 * Hollingbourne railway station, in England