Last name קאופ (Kaup 
, קאופ 
) , around the globe, is quite a common surname. The cognomen קאופ is characteristic of Estonia, where it is quite a common surname, Germany, where it is quite a rare surname, and Denmark. Measured by absolute frequency, the name is most common in Germany, the United States, and Estonia. Very seldom, קאופ is the forename as well as the last name.