Family name 怀泽 (怀泽 
, Wiser 
, Wysor ) , in all the world, is quite a rare surname. The last name 怀泽 is habitual in Switzerland, where it is quite a rare surname, Luxembourg, and the United States. Not in comparison with a country's population, it is commonest in the United States, China, and Switzerland. Very seldom, 怀泽 is the forename as well as the last name.