H1
- 1 (disambiguation)
- 1H (disambiguation)
- ATC code H01
- Alternative hypothesis
- Bell Huey family
- British NVC community H1
- DSC-H1
- H (disambiguation)
- H I region
- H-1B visa
- H-1NF
- H-I
- H1 (classification)
- H1 (particle detector)
- H1 Lamp
- H1 Unlimited
- HI (disambiguation)
- HL (disambiguation)
- HMS H1
- HMS Hotspur (H01)
- HTML element
- Haplogroup H1 (disambiguation)
- Haval H1
- Hello Internet
- Histamine H1 receptor
- Histone H1
- Hooters Air
- Hora Um da Notícia
- Hughes H-1 Racer
- Hummer H1
- Hydrogen atom
- Hyundai Starex
- Interstate H-1
- John Harrison
- Kawasaki H1 Mach III
- Kawasaki H1R
- LNER Class H1
- METRORail
- Protium (isotope)
- Protocol Concerning the Redeployment in Hebron
- Rocketdyne H-1
- Siemens S70
- Tianwen-1
- Tiger I
- USS H-1 (SS-28)