Family name คนกลาง (Meder 
, Middler 
, คนกลาง 
) , throughout the world, is quite a common surname. The surname คนกลาง is habitual in Western Europe, particularly Germany, where it is quite a rare surname, Luxembourg, and Austria. In absolute terms, this name is the most popular in Germany, the United States, and Argentina. Very seldom, คนกลาง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Meder | Germany, United States, Poland, Argentina, France |
| Middler | Germany, United Kingdom, South Africa, United States, Canada |
| คนกลาง, Khonklang | Thailand |
Knonklang, Mediatrix, Mediee, Middleditch, Middlemass, Middlemiss, Middletom, Midgron, Midkin, and Midsee