Surname Nicolaevich (Николаевич 
, Nicolaevich 
) , globally, is a common last name. The cognomen Nicolaevich is characteristic of Kazakhstan, where it is a common surname, Russia, where it is quite a rare surname, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Николаевич | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Nicolaevich | Spain, Russia |