Cognomen ไวเลอร์ (Weileder 
, ไวเลอร์ 
) , all over the world, is a rare family name. The family name ไวเลอร์ is characteristic of Germany, where it is a rare surname, Austria, and Canada, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Germany, Austria, and the United States. Very seldom, ไวเลอร์ is the forename as well as the last name.