Surname Клес (Kles 
, Клес 
) , all around the world, is a rare family name. The family name Клес is habitual in Belarus, where it is a rare surname, Germany, and France, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Germany, Russia, and the United States. Also, Клес is the forename as well as the last name.