Surname Maslyanskii (Maslyanskii 
, Маслянский 
) , in all the world, is a rare last name. The cognomen Maslyanskii is habitual in Belarus, where it is a rare surname, Russia, where it is a very rare surname, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Maslyanskii | Belarus, Russia |
| Маслянский | Belarus, Russia, Kazakhstan |
Маслянскій, and Маслянський