Worldwide, ולדק (Waldeck 
, ולדק 
) is a rare masculine first name. The first name ולדק is characteristic of Brazil, where it is a rare male name, France, where it is a very rare masculine name, and South Africa, where it is a very rare dominantly boy's, but seldom girly name. More frequently, ולדק is the last name as well as the forename.