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Surname Etymology and Meaning of HAAS

Name meanings and etymologies are often disputed. The information here is compiled from freely available sources, and no claims whatsoever are made for accuracy, either historical or etymological.

Dutch, German, and Jewish (Ashkenazic): from Middle Dutch, Middle High German hase, German Hase ‘hare’, hence a nickname for a swift runner or a timorous or confused person, but in some cases perhaps a habitational name from a house distinguished by the sign of a hare. As a Jewish name it can also be an ornamental name or one of names selected at random from vocabulary words by government officials when surnames became compulsory.

Source: Dictionary of American Family Names (2003)