Surname Ildiko (Ildiko 
, Ildikó , Илдико 
) , in the world, is quite a common family name. The last name Ildiko is characteristic of Eastern Europe, particularly Hungary, where it is quite a common surname, Romania, and Slovakia, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Hungary, Romania, and Serbia. More frequently, Ildiko is the forename as well as the last name.