HB may refer to:
HB (car)HB (cigarette), a German brand of cigarettes.
HB Ice Cream, an Irish ice cream
Hanna-Barbera, also known as H-B, a cartoon studio, later renamed Cartoon Network StudiosHB Bearings, a British bearing manufacturerHB is also an abbreviation of:
Happy BirthdayHemoglobin, usually Hb
Hofbräu, a German brewery
H-B Woodlawn secondary education program (from the combination of the Hoffman-Boston and Woodlawn programs), in Arlington, Virginia
Havnar Bóltfelag, football team in the Faroe Islands
Half back, a position in a number of football gamesHampton and Branchville Railroad Hansestadt
Bremen on German license plateshard black, a medium grade of
pencil leadHarbor Airlines IATA airline designator
Brinell hardnessHardness-Blackness (HB), standard writing
pencilHelvetischer Bund, used as
ICAO aircraft registration prefix (since 1935, before: CH) for SwitzerlandHurry Back -
Internet SlangHörbuch, a German word for audiobook
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Hb, hemoglobin, substance in red blood cells which conveys oxygen from the lungs to body tissues