Last name Fejl (Feil 
, Faille 
, Fejl 
) , all around the world, is a common surname. The cognomen Fejl is habitual in Germany, where it is quite a rare surname, Hungary, and Belgium. Not in comparison with a country's population, this name is the most popular in Germany, the United States, and Brazil. Much less frequently, Fejl is the forename as well as the last name.