Surname Sidjakin (Сидякин 
, Sidjakin ) , in the world, is quite a rare last name. The cognomen Sidjakin is characteristic of Russia, where it is quite a rare surname, Belarus, where it is a rare surname, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Сидякин | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Sidjakin | Belarus |