Surname Блен (Blain 
, Blin , Блен 
) , throughout the world, is a common cognomen. The family name Блен is habitual in France, where it is quite a common surname, Guernsey, and Gabon, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in France, the United States, and Canada. Much less frequently, Блен is the forename as well as the last name.