Last name Kvasnovska (Kvasnovska 
) , in all the world, is a rare family name. The surname Kvasnovska is habitual in Slovakia, where it is quite a rare surname, Czechia, where it is a rare surname, and Australia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kvasnovska | Czechia, Slovakia, Australia |
Kvasnovská, Kvasňovská, Kvašnovská, Kvašňovská, Квасновська, Квасньовська, and Квасьньовська