H1
H1 stands for:
- an element for a heading in Hypertext Markup Language (HTML)
- H1 (Paralympics) , a starting class in the Paralympics
- German electron synchrotron # H1 , universal detector for the collision of electrons and protons
- H1 (television) , television station for the Hanover region
- Histamine H1 receptor , a protein in the histamine receptor family
- Histone H1 , one of the five main histone proteins in chromatin
- Hummer H1 , off-road vehicle model from the US car brand Hummer
- H1 (neuron) , movement-sensitive nerve cell in the optical lobe of the flies
- H1 (headlights) , standard for lamps in headlights for motor vehicles, see also lamp base #Headlight lamps for motor vehicles
- H1 lubricant for special applications in the food and feed industry
- Hitra cesta H1 , two-lane motor road in Slovenia
- H1 (statistics) , alternative hypothesis in statistics
- H1 Telecom , telecommunications operator in Croatia
- H1 (clock) , first accurate ship clock built by John Harrison
- Kawasaki 500 H1 , motorcycle from the Japanese manufacturer Kawasaki
- H1 (paleoclimate) , the second Heinrich event of the last glacial period
H-1 stands for:
- Hughes H-1 , American aircraft
- HI , a Japanese launcher
- Hyundai H-1 , a pickup truck from the Hyundai car brand
- Interstate H-1 , an interstate highway in the state of Hawaii in the United States
