Surname Kyselyk (Kyselyk 
, Киселик 
) , in the world, is a rare cognomen. The surname Kyselyk is habitual in Ukraine, where it is a rare surname, Spain, where it is a very rare surname, and Kazakhstan. Measured by absolute frequency, it is the most numerous in Ukraine, Russia, and Spain.
| VARIANT | COUNTRY |
|---|---|
| Kyselyk | Spain, Ukraine |
| Киселик | Kazakhstan, Ukraine, Russia |