Surname רייקוב (Raykov 
, Rajkov 
, רייקוב ) , in all the world, is quite a common cognomen. The family name רייקוב is habitual in Bulgaria, where it is quite a common surname, Serbia, and Greece, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Bulgaria, Serbia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Raykov | Israel, Bulgaria, Greece, United States, Germany |
| Rajkov | Serbia, France, United States, Germany, North Macedonia |
| רייקוב | Israel |