HB

HB or Hb may refer to:

Academia

 * H-b index, an extension of the h-index used in determining academic impact
 * H-B Woodlawn, a secondary education program in Arlington, Virginia, US
 * Hathaway Brown School, an all-girls private school in Shaker Heights, Ohio, US

Arts and media

 * HB (band), a Finnish Christian symphonic metal musical group
 * Hanna-Barbera, a cartoon studio, later folded into Warner Bros. Animation and replaced by Cartoon Network Studios
 * Heaven Below, an American rock band
 * Helluva Boss, an adult animated TV show

Businesses and brands

 * HB (car), a 1920s automobile
 * HB (cigarette), a German brand of cigarettes
 * HB Construction, a private US general contractor construction business
 * HB Ice Cream, an Irish brand
 * Asia Atlantic Airlines (IATA code HB)
 * Hamilton Bradshaw, a London-based private equity firm
 * Hampton and Branchville Railroad (H&B)
 * Holland & Barrett (H&B), a UK health food shop chain
 * Hasbro, an American toy company
 * HB, logo for the Staatliches Hofbräuhaus in München, also Hofbräu München, a brewery owned by the Bavaria government

Places

 * Bremen (state) (license plate: HB), a German state
 * Hanuabada, a village in Papua New Guinea, known as HB to the locals
 * Hermosa Beach, California, a city in southern California, US
 * Hubei (Guobiao abbreviation HB), a province of China
 * Huntington Beach, California, a city in southern California, US
 * Switzerland and Liechtenstein (aircraft registration prefix), distinguished by use of emblems
 * Zürich Hauptbahnhof (often shortened to HB), the central train station in Zürich, Switzerland

Science and technology

 * HB pencil (hard black), a classification of pencils
 * HB, a flammability rating as set forth in UL 94
 * Horizontal branch, in astrophysics
 * HB, a level in the Brinell scale hardness test

Medicine

 * Heart block, cardiovascular system disease that involves the heart's electrical conduction system
 * Hemoglobin (Hb), group of iron-containing proteins found in most animals which primary function is to carry oxygen to the tissues
 * Hepatitis B, a human viral infection
 * His bundle, a specialized collection of cells in the vertebrate heart

Sport

 * Half-back line, the positions of three players in Australian rules football
 * Halfback (American football), an American football position
 * Half back (association football), another name for a midfielder
 * Handball (disambiguation), a number of sports
 * Havnar Bóltfelag, a football team in the Faroe Islands
 * Herfølge Boldklub, a football team in Denmark
 * Holstebro Boldklub, a football team in Denmark

People

 * H. B. Acton (1908–1974), political philosopher
 * H. B. Bailey (1936–2003), NASCAR driver
 * H. B. Higgins (1851–1929), Australian politician
 * H. B. Reese (1879–1956), candy maker
 * H. B. Warner (1875–1958), motion picture executive

Politics

 * Herri Batasuna, defunct far-left Basque nationalist political party in Spain

Other uses

 * Half-board, a housing arrangement in which the host provides only a breakfast and dinner meals