Last name 努克 (Wnuk 
, 努克 
) , in all the world, is quite a common family name. The cognomen 努克 is characteristic of Poland, where it is quite a common surname, Ireland, where it is a rare surname, and Germany. Measured by absolute frequency, it is commonest in Poland, the United States, and Germany. Likewise, 努克 is the forename as well as the last name.