Last name Karalkov (Karalkov 
, Каралков 
) , around the globe, is a very rare family name. The family name Karalkov is habitual in Eastern Europe, particularly Hungary, where it is a very rare surname, and Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Karalkov | Hungary |
| Каралков | Russia |