Surname Ruang (เรือง 
, Ruang 
, รวง ) , globally, is a rare last name. The cognomen Ruang is habitual in Taiwan, where it is quite a rare surname, Myanmar, where it is a rare surname, and Malaysia. Not in comparison with a country's population, it is the most numerous in Taiwan, Indonesia, and Myanmar. More prevalently, Ruang is the forename as well as the last name.