Surname Сюан (Syuan 
, Сюан 
) , all over the world, is a rare cognomen. The last name Сюан is characteristic of Taiwan, where it is a rare surname, Malaysia, and Kazakhstan, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in Taiwan, Malaysia, and China. Likewise, Сюан is the forename as well as the last name.