Cognomen Сидига (Sidiga 
, Сидига 
) , in the entire world, is a very rare last name. The surname Сидига is characteristic of Southern Asia, particularly India, where it is an extremely rare surname. More frequently, Сидига is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sidiga | Turkey, Russia, United States, India, Brazil |
| Сидига | Kazakhstan, Russia, Ukraine |