Last name 希媛 (Xiyuan 
, 希媛 ) , in the entire world, is a rare surname. The surname 希媛 is habitual in China, where it is a very rare surname, Malaysia, where it is an extremely rare surname, and Thailand. Not in comparison with a country's population, the name is most common in China, Malaysia, and the United States. Much more prevalently, 希媛 is the forename as well as the last name.