Family name Knkn (كنكن 
, Knkn 
) , in the world, is a very rare surname. The surname Knkn is habitual in Iraq, where it is a rare surname, Saudi Arabia, where it is a very rare surname, and Spain, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in Iraq, Saudi Arabia, and India. Also, Knkn is the forename as well as the last name.