Cognomen Gudyakov (Gudyakov 
, Гудяков 
) , across the world, is a very rare surname. The cognomen Gudyakov is characteristic of Eastern Europe, particularly Russia, where it is a very rare surname, and Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Gudyakov | Russia |
| Гудяков | Russia, Ukraine |