Family name Yavnyi (Yavnyi 
, Явный 
) , in the entire world, is a rare cognomen. The cognomen Yavnyi is characteristic of Belarus, where it is a rare surname, Kazakhstan, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Yavnyi | Ukraine, United States, Russia |
| Явный | Kazakhstan, Russia, Ukraine, Belarus |