Surname 纳夫 (纳夫 
, Knaff 
, Knave 
) , globally, is a rare family name. The surname 纳夫 is characteristic of Luxembourg, where it is quite a common surname, Sweden, where it is a rare surname, and France. Measured by absolute frequency, the name is most common in the United States, France, and Sweden. Very seldom, 纳夫 is the forename as well as the last name.