Family name Файффер (Feiffer 
, Файффер 
) , in all the world, is a rare last name. The cognomen Файффер is habitual in Romania, where it is a rare surname, Denmark, and Canada, where it is a very rare surname. In absolute terms, it is commonest in Romania, Italy, and Germany. Very seldom, Файффер is the forename as well as the last name.