Surname ウェルド (Weld 
, ウェルド) , all over the world, is quite a rare last name. The family name ウェルド is habitual in Tunisia, where it is quite a rare surname, Ireland, and Guatemala, where it is a rare surname. Measured by absolute frequency, it is the most numerous in the United States, Tunisia, and Indonesia. More prevalently, ウェルド is the forename as well as the last name.