Surname Йелинек (Jelinek 
, Йелинек 
) , across the world, is a common last name. The family name Йелинек is characteristic of Czechia, where it is quite a common surname, Slovakia, and Austria. In absolute terms, this name is the most popular in Czechia, the United States, and Germany. Very seldom, Йелинек is the forename as well as the last name.