Cognomen 扬森 (扬森 
, Younson 
) , around the globe, is a very rare surname. The cognomen 扬森 is characteristic of the United Kingdom, where it is a very rare surname, China, where it is an extremely rare surname, and South Africa. In absolute terms, this name is the most popular in China, the United Kingdom, and Nigeria. More prevalently, 扬森 is the forename as well as the last name.