Surname Iachov (Iachov 
, Яшов 
) , around the world, is a very rare cognomen. The family name Iachov is characteristic of Bulgaria, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Iachov | United States |
| Яшов | Kazakhstan, Russia, Ukraine, Bulgaria |