Last name Гуэн (Guen 
, Gouin 
, Гуэн 
) , across the world, is a common cognomen. The cognomen Гуэн is characteristic of France, where it is quite a common surname, Canada, where it is quite a rare surname, and Algeria. In absolute terms, it is the most numerous in France, Canada, and the United States. Very seldom, Гуэн is the forename as well as the last name.