Surname Mikulinskiy (Mikulinskiy 
, Микулинский 
) , across the world, is a rare cognomen. The cognomen Mikulinskiy is habitual in Belarus, where it is a rare surname, Russia, and Kazakhstan, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Mikulinskiy | Spain, Russia, United States |
| Микулинский | Kazakhstan, Russia, Ukraine, Belarus |