Cognomen 伦格 (Runge 
, 伦格 
, Lunger 
) , throughout the world, is a common family name. The surname 伦格 is habitual in Germany, where it is quite a common surname, Denmark, where it is quite a rare surname, and Latvia. Measured by absolute frequency, the name is most common in Germany, the United States, and Denmark. Much less frequently, 伦格 is the forename as well as the last name.