Family name ולדק (Waldeck 
, ולדק 
) , worldwide, is quite a common last name. The last name ולדק is habitual in Lesotho, where it is quite a rare surname, Germany, and Botswana. Not in comparison with a country's population, it most frequently occurs in Germany, the United States, and South Africa. Much less frequently, ולדק is the forename as well as the last name.