Surname Жанжан (Jeanjean 
, Жанжан 
) , throughout the world, is quite a rare last name. The surname Жанжан is habitual in France, where it is quite a rare surname, Belgium, where it is a rare surname, and Hungary. In absolute terms, this name is the most popular in France, Belgium, and Poland. Much less frequently, Жанжан is the forename as well as the last name.