Surname Shangkuan (尚宽 
, Shangkuan 
) , in all the world, is a very rare family name. The cognomen Shangkuan is characteristic of Philippines, where it is a very rare surname, Germany, where it is an extremely rare surname, and the United States. Measured by absolute frequency, it most frequently occurs in China, the United States, and Philippines. More frequently, Shangkuan is the forename as well as the last name.