Cognomen Sinisha (Sinisha 
, Синиша 
) , in all the world, is quite a rare family name. The cognomen Sinisha is characteristic of North Macedonia, where it is quite a common surname, Montenegro, where it is quite a rare surname, and Nigeria, where it is an extremely rare surname. Likewise, Sinisha is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sinisha | North Macedonia, India, Montenegro, Bulgaria, Serbia |
| Синиша | Serbia, Russia |