Family name origins & meanings
- German : habitational name for someone from a place named Kreisau.
- German : occupational name for a forest warden or a guard protecting crops from birds and thieves, from an agent derivative of kreisen ‘to circulate’, ‘to go round’.
- German (in Tyrol) : habitational name for someone from St. Quirinus.
- Jewish (Ashkenazic) : of uncertain origin; perhaps a derivative of Kreis.