Surname Ронькин (Ronkin 
, Ронькин 
) , in all the world, is a rare cognomen. The family name Ронькин is habitual in Israel, where it is a rare surname, Hungary, and Bulgaria. Measured by absolute frequency, it is the most numerous in the United States, Israel, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Ronkin | Hungary, Bulgaria, United States, Israel, Russia |
| Ронькин | Kazakhstan, Russia |