Family name Редль (Redl 
, Редль) , in all the world, is quite a rare last name. The family name Редль is characteristic of Austria, where it is quite a common surname, Hungary, where it is quite a rare surname, and Czechia. Measured by absolute frequency, it is the most numerous in Austria, Germany, and Hungary. Much less frequently, Редль is the forename as well as the last name.