HAB may refer to:

  • Habrough railway station, England; National Rail station code HAB
  • A Habilitation, a post-doctoral research stage in Europe and Asia
  • Home Affairs Bureau, Hong Kong
  • High-altitude balloon
  • Hokuriku Asahi Broadcasting, a television station in Ishikawa Prefecture, Japan]
  • Hospitality Awarding Body
  • Herzog August Bibliothek, a library in Wolfenb├╝ttel, Germany.
  • Marion County - Rankin Fite Airport (IATA: HAB), an airport serving Hamilton, Alabama, United States
  • The HAB Theory, a 1976 science fiction novel by American author Allan W. Eckert