Cognomen Shirokaja (Широкая 
, Shirokaja 
) , around the world, is quite a rare family name. The surname Shirokaja is characteristic of Belarus, where it is quite a common surname, Azerbaijan, where it is quite a rare surname, and Russia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Широкая | Ukraine, Kazakhstan, Belarus, Russia, Azerbaijan |
| Shirokaja | United States, Belarus |