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 Half Moon Bay is a coastal city in San Mateo County, California, United States, approximately south of San Francisco. Its population was 11,795 as of the 2020 census. Immediately at the north of Half Moon Bay is Pillar Point Harbor and the un ...

, 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 {{disambiguation