Cognomen Докен (Докен 
, Dokken 
) , in all the world, is quite a rare surname. The cognomen Докен is characteristic of Norway, where it is quite a common surname, Israel, where it is a rare surname, and Sweden. Measured by absolute frequency, it is commonest in the United States, Norway, and Canada. Much less frequently, Докен is the forename as well as the last name.