Cognomen Леисен (Leisen 
, Леисен 
) , worldwide, is a rare last name. The surname Леисен is habitual in Western Europe, particularly Luxembourg, where it is quite a rare surname, Germany, where it is a rare surname, and France, where it is a very rare surname. Not in comparison with a country's population, it is commonest in Germany, the United States, and France. Much less frequently, Леисен is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Leisen | Germany, Canada, Luxembourg, France, United States |
| Леисен | Russia |