Family name 西翁 (Sion 
, 西翁) , in the entire world, is a common cognomen. The cognomen 西翁 is habitual in Suriname, where it is quite a common surname, Brunei, where it is quite a rare surname, and France. Not in comparison with a country's population, it is the most numerous in Philippines, France, and Indonesia. Also, 西翁 is the forename as well as the last name.