Throughout the world, Тьерк (Tjerk 
, Tsjerk 
, Тьерк 
) is a rare male forename. The first name Тьерк is habitual in Western Europe, particularly Netherlands, where it is quite a rare male name, Belgium, where it is a rare boy's name, and Germany, where it is a very rare boy's name. Much less frequently, Тьерк is the last name as well as the forename.