Surname Келнер (Kellner 
, Келнер 
) , around the globe, is a common family name. The last name Келнер is characteristic of Austria, where it is quite a common surname, Germany, and Czechia, where it is quite a rare surname. In absolute terms, this name is the most popular in Germany, the United States, and Austria. Much less frequently, Келнер is the forename as well as the last name.