Last name Jilkina (Жилкина 
, Jilkina 
) , throughout the world, is quite a common cognomen. The surname Jilkina is habitual in Russia, where it is quite a rare surname, Kazakhstan, and Belarus, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Жилкина | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Jilkina | Germany, Finland, United States, Ecuador, Venezuela |