Last name 偉德 (Weed 
, 偉德 
) , in the entire world, is a common cognomen. The surname 偉德 is habitual in El Salvador, where it is quite a rare surname, the United States, and Bolivia, where it is a rare surname. Measured by absolute frequency, it is the most numerous in the United States, Myanmar, and the United Kingdom. Much less frequently, 偉德 is the forename as well as the last name.