Surname Sincov (Синцов 
, Sincov 
) , in the world, is quite a rare last name. The surname Sincov is habitual in Russia, where it is quite a rare surname, Belarus, and Kazakhstan, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Синцов | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Sincov | United States |