Surname Яссаков (Яссаков 
, Iassakov 
) , in all the world, is a very rare last name. The family name Яссаков is habitual in Kazakhstan, where it is a very rare surname, Russia, where it is an extremely rare surname, and Argentina.
| VARIANT | COUNTRY |
|---|---|
| Яссаков | Kazakhstan, Russia, Ukraine |
| Iassakov | Argentina |