Family name Моен (Moen 
, Моен 
) , all over the world, is a common cognomen. The cognomen Моен is characteristic of Norway, where it is a common surname, Netherlands, where it is quite a rare surname, and Sweden. Measured by absolute frequency, this name is the most popular in Norway, the United States, and Canada. Very seldom, Моен is the forename as well as the last name.