H1, H-1, H01, H I may refer to:

Places

<!-- *H01, Highway H01 (Ukraine) -->

  • Interstate H-1, a highway in Hawaii
  • Area H1, the area of Hebron controlled by the Palestinian Authority under the Hebron Protocol

Science

  • H1 (particle detector)
  • Histamine H1 receptor
  • Histone H1, a protein

<!-- *H1, first half of a fiscal year - The article has no mention, so this is just a dict def & not admissible on a Dab-->

<!-- *H1, Halo: Combat Evolved, a video game created by Bungie, for the Xbox - Not mentioned in article; provide convincing reference for use-->

<!-- *H1 (Armenian Public TV) - No mention in article, nor hint of why "H1"-->

  • British NVC community H1, a heath zone
  • Hydrogen atom (H<sub>1</sub>)
  • Protium (isotope), an isotope of hydrogen
  • H I region, a cloud in the interstellar medium
  • ATC code H01 Pituitary and hypothalamic hormones and analogues, a subgroup of the Anatomical Therapeutic Chemical Classification System
  • Haplogroup H1 (disambiguation), a grouping in genetics based on certain similarities
  • Alternative hypothesis (H<sub>1</sub>)

Technology

  • , level 1 heading markup for HTML Web pages; see HTML element
  • DSC-H1, a Sony Cybershot digital camera
  • H1, John Harrison's first marine chronometer
  • Tianwen-1 (formerly Huoxing-1), first Chinese space probe to reach Mars
  • H-1NF, the Australian Plasma Fusion Research Facility, formerly H-1 Heliac stellarator
  • Unitree H1, a humanoid robot developed by Unitree Robotics

Transportation

  • H1 Lamp, an automotive halogen light bulb
  • H-I or H–1, a Japanese rocket
  • Rocketdyne H-1, a liquid-propellant rocket engine

Aviation

  • Bell Huey family Bell H-1, series of helicopters with that designation
  • Hooters Air airline
  • Hughes H-1 Racer, a racing aircraft

Motor vehicles

  • Haval H1, a Chinese subcompact crossover
  • Hummer H1, an American full-size SUV
  • Hyundai H-1, a South Korean commercial van
  • Tiger H1, a German heavy tank used during WW2

Motorcycles

  • Kawasaki H1 Mach III, road motorcycle
  • Kawasaki H1R, racing motorcycle

Ships

  • HMS H1, a 1915 British Royal Navy H-class submarine
  • HMS Hotspur (H01), a 1935 British Royal Navy H-class destroyer
  • USS H-1, a 1913 United States Navy submarine

Rail

  • LB&SCR H1 class, a class of British steam locomotives
  • LNER Class H1, a class of British steam locomotives
  • Designation for METRORail Siemens S70 light rail vehicles

<!-- *PRR H1, locomotive -->

<!-- *Saxon X H1, train -->

<!-- *SP&S Class H-1, locomotive class -->

Time

  • H1 may refer to the first half of the business year, while H2 refers to the second half.

Other uses

  • H1 (classification), a para-cycling classification
  • , one of the three laryngeals in the reconstructed Proto-Indo-European language
  • H1 Unlimited, a premier unlimited hydroplane racing league
  • Hora Um da Notícia, a news program aired by Rede Globo

See also

  • Hello Internet (HI), a podcast
  • H-1B visa
  • HI (disambiguation)
  • HL (disambiguation)
  • 1H (disambiguation)
  • H (disambiguation)
  • 1 (disambiguation)