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

Science

* British NVC community H6, an ecological designation *

Sanguiin H-6 Sanguiin H-6 is an ellagitannin. Natural occurrence Sanguiin H-6 can be found in Rosaceae such as the great burnet (''Sanguisorba officinalis''), in strawberries (''Fragaria × ananassa'') and in ''Rubus'' species such as red raspberries (''Rub ...

, a dimeric ellagitannin found in ''Sanguisorba officinalis'', the great burnet *

Hydrogen-6 Hydrogen (1H) has three naturally occurring isotopes, sometimes denoted , , and . and are stable, while has a half-life of years. Heavier isotopes also exist, all of which are synthetic and have a half-life of less than one zeptosecond (10� ...

(H-6 or ⁶H), an isotope of hydrogen

Transportation

Aircraft

Hughes OH-6 Cayuse The Hughes OH-6 Cayuse is a single-engine light helicopter that was designed and produced by the American aerospace company Hughes Helicopters. Its formal name is derived from the Cayuse people while its "Loach" nickname comes from the acronym f ...

, a 1963 American scout helicopter **

MD Helicopters MH-6 Little Bird The Boeing MH-6M Little Bird (nicknamed the Killer Egg) and its attack variant, the AH-6, are light helicopters used for special operations in the United States Army. Originally based on a modified OH-6A, it was later based on the MD 500E, w ...

, a special forces variant * Xian H-6, a Chinese bomber *

Besson H-6 __NOTOC__ The Besson H-6 was a French single-seat postal flying-boat designed by the Marcel Besson company of Boulogne. Development The H-6 was a single-seat triplane flying-boat powered by a Clerget 9B The Clerget 9B was a nine-cylinder rota ...

, 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

Roads

H6 Childs Way 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 6H), an isotope of hydrogen Transport ...

, a road in England * Highway H06, a road in the Ukraine

Other uses

* , 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