Cognomen Йорданка (Йорданка 
, Jordanka 
, Iordanka 
) , in the world, is a common family name. The cognomen Йорданка is habitual in Bulgaria, where it is a common surname, North Macedonia, where it is quite a common surname, and Bosnia and Herzegovina, where it is quite a rare surname. Also, Йорданка is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Йорданка | Russia, Ukraine, Bulgaria |
| Jordanka | North Macedonia, Bosnia and Herzegovina, Bulgaria, United States, Cuba |
| Iordanka | Greece, France, Spain, Bulgaria, United States |