Surname Leński (Leński 
) , in all the world, is a very rare cognomen. The cognomen Leński is habitual in Eastern Europe, particularly Poland, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Leński | Poland |
|
julian leński Polish politician, PL (b. 1889) |
|
| tomasz leński PL |
|