Cognomen 威瑟 (Wither 
, Weisser 
, Vyse 
) , around the globe, is quite a common last name. The cognomen 威瑟 is habitual in Germany, where it is quite a rare surname, Switzerland, and Norway. Not in comparison with a country's population, it most frequently occurs in Germany, the United States, and the United Kingdom. Much less frequently, 威瑟 is the forename as well as the last name.