Surname Fadar (Fadar 
, Fader 
) , all around the world, is quite a rare family name. The cognomen Fadar is characteristic of Canada, where it is quite a rare surname, Switzerland, where it is a rare surname, and the United States. Measured by absolute frequency, this name is the most popular in the United States, India, and Canada. Likewise, Fadar is the forename as well as the last name.