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 | Israel, Bulgaria, United States, Russia, Hungary |
| Ронькин | Russia, Kazakhstan |