Surname Leyenson (Leyenson 
, Леенсон 
) , all around the world, is a rare cognomen. The cognomen Leyenson is habitual in Russia, where it is a very rare surname, Belarus, and Canada, where it is an extremely rare surname. In absolute terms, the name is most common in Russia, the United States, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Leyenson | United States, Canada |
| Леенсон | Belarus, Russia |
| maxim leyenson Ph.D. The University of Chicago 2005 |
|