Last name Лейзен (Leysen 
, Leisen 
, Лейзен 
) , globally, is quite a rare cognomen. The family name Лейзен is characteristic of Western Europe, particularly Belgium, where it is quite a common surname, Luxembourg, where it is quite a rare surname, and Netherlands, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Belgium, Germany, and the United States. Very seldom, Лейзен is the forename as well as the last name.