HHO
HHO may refer to:
- Croatian Helsinki Committee (Croatian: Hrvatski helsinški odbor)
- HHO gas, a fringe science term for oxyhydrogen with a 2:1 ratio of hydrogen and oxygen
- HHO Multimedia, a British audio and video licensor
- Home heating oil
- , a numerical simulation method
See also[]
- Herbig–Haro object (HH)
Categories:
- Disambiguation pages