H6, H06, or H-6 may refer to:

Science

  • British NVC community H6, an ecological designation
  • Sanguiin H-6, a dimeric ellagitannin found in Sanguisorba officinalis, the great burnet
  • Hydrogen-6 (H-6 or <sup>6</sup>H), an isotope of hydrogen

Transportation

Aircraft

  • Hughes OH-6 Cayuse, a 1963 American scout helicopter
  • MD Helicopters MH-6 Little Bird, a special forces variant
  • Xi'an H-6, a Chinese bomber
  • Besson H-6, a French flying boat
  • Sikorsky R-6, a 1943 American helicopter

Watercraft

  • HMS H6, a British submarine
  • USS H-6 (SS-149), a United States submarine
  • HMS Hurricane (H06), a British Havant-class destroyer
  • HMS Keith (H06), a British B-class destroyer

Other vehicles

  • PRR H6, a steam locomotive
  • Haval H6, a compact crossover SUV produced by Great Wall Motor
  • Hispano-Suiza H6, an automobile
  • Rely H6, a van

Roads

  • H6 Childs Way, a road in England
  • Highway H06, a road in Ukraine

Other uses

  • <code><nowiki><h6></h6></nowiki></code>, level 6 heading markup for HTML Web pages, see HTML element#heading
  • Flat-six engine, sometimes marketed as H6
  • Halloween: The Curse of Michael Myers, the sixth film in the Halloween franchise
  • H6: Diary of a Serial Killer, a movie
  • Composition H6, an explosive
  • H6, a watch possibly made by John Harrison
  • H6, the name given by the British Home Office to a Chinese businessman and alleged spy Yang Tengbo

See also

  • 6H (disambiguation)