Cognomen Samyun (Samyun 
, 三然 
) , in all the world, is a very rare surname. The family name Samyun is characteristic of Malaysia, where it is a very rare surname, Canada, where it is an extremely rare surname, and China. In absolute terms, it is commonest in China, Malaysia, and India. More frequently, Samyun is the forename as well as the last name.