Meaning & History
Haas is a German and Dutch surname, also common among Jewish (Ashkenazic) populations, derived from the words for "hare" in both languages: German Hase and Dutch Haas (or the phrase de Haas, meaning "the hare"). The name began as a nickname for someone considered quick-moving or timid, likened to the animal, much like other Germanic animal-based surnames such as Fuchs (fox) or Bär (bear). The root form, Hase, comes from Middle High German and Middle Low German hase, meaning "hare, rabbit."
Related Names
Sources: Wikipedia — Haas (name)