Abbreviations or Acronyms
- Hathaway Brown School
- Half-board (hotel term that indicates breakfast and dinner are included in the price)
- Hansestadt Bremen, federal state of Germany (code used on German license plates)
- Happy Birthday
- Huntington Beach, California, a city in southern California
- Hawke's Bay Region, a region of New Zealand
- Havnar Bóltfelag, football team in the Faeroe Islands
- Half-Back, an Australian Rules football position
- Halfback (American football), an American football position
- Handball (disambiguation), a number of sports
- House bill, a legislative bill originating from the lower house
- A pencil classification code for a medium grade lead
- A level in the Brinell scale hardness test
- Helbreath, a 1999 massively multiplayer online role-playing game
- Hampton and Branchville Railroad
- Helplessness Blues, the second album of the American indie folk band Fleet Foxes
- Hellboy
- Hose barb
- Horizontal branch in astrophysics
- Hamilton Bradshaw, a London-based private equity firm
- Hepatitis B
- Hemoglobin
- Hanna-Barbera, a cartoon studio, later renamed Cartoon Network Studios
- H-B Woodlawn, a public school in Arlington County, Virginia
- H-B Woodlawn Chamber Singers
- H-b index, an extension of the h-index used in determining academic impact
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