Surname Kuken (Кукен 
, Kuken 
, Küken 
) , all around the world, is a rare cognomen. The cognomen Kuken is habitual in Kyrgyzstan, where it is a rare surname, Japan, and Germany, where it is a very rare surname. In absolute terms, the name is most common in India, Japan, and Germany. Likewise, Kuken is the forename as well as the last name.