Surname Yasnovsky (Yasnovsky 
, Ясновский 
) , all over the world, is a very rare last name. The surname Yasnovsky is habitual in Belarus, where it is a very rare surname, Russia, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Yasnovsky | United States |
| Ясновский | Russia, Belarus |
Ясновський, and יאסנובסקי