Family name Мансі (Moncey 
, Мансі 
) , in all the world, is a rare cognomen. The cognomen Мансі is characteristic of France, where it is a rare surname, the United States, where it is a very rare surname, and Canada. In absolute terms, the name is most common in France, the United States, and India. Very seldom, Мансі is the forename as well as the last name.