HMB

HMB may refer to:

Compounds

 * β-Hydroxy β-methylbutyric acid,, a metabolite of the essential amino acid leucine, synthesized in the human body
 * Human Melanoma Black, a monoclonal antibody

Languages

 * Humburi Senni language, spoken in Burkina Faso and Mali

Places

 * Half Moon Bay, California, city in the United States

Sports

 * Historical medieval battles, a modern sport

Other

 * Hawkeye Marching Band, the marching band for the University of Iowa
 * HabibMetro, a Swiss multinational bank in Pakistan
 * Heavy menstrual bleeding, a menstrual condition
 * Host Memory Buffer, an optional feature in version 1.2 of the NVMe specification, which allows SSDs to utilize the DRAM of the host machine
 * His/Her Magesty's Barque