Surname Желко (Zeljko 
, Желко 
, Zhelko 
) , throughout the world, is quite a rare last name. The family name Желко is characteristic of Southern Europe, particularly Bosnia and Herzegovina, where it is quite a common surname, Slovenia, and Montenegro (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in Southern Europe, particularly Bosnia and Herzegovina, Serbia, and Croatia. More frequently, Желко is the forename as well as the last name.