Cognomen Vanki (Vanki 
, Fange 
, Vangen 
) , throughout the world, is quite a rare last name. The last name Vanki is characteristic of Northern Europe, particularly Norway, where it is quite a common surname, Sweden, where it is a rare surname, and Estonia. In absolute terms, it most frequently occurs in Norway, India, and the United States. Much less frequently, Vanki is the forename as well as the last name.