HMB may refer to:

Compounds

• β-Hydroxy β-methylbutyric acid, (CH
  ₃)
  ₂C(OH)CH
  ₂COOH, 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

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