Family name Флеш (Флеш 
, Flesch 
, Flesche 
) , all over the world, is quite a common surname. The last name Флеш is habitual in Luxembourg, where it is quite a rare surname, Hungary, and Armenia. Not in comparison with a country's population, the name is most common in Germany, the United States, and Brazil. Much less frequently, Флеш is the forename as well as the last name.