Family name รัว (Rua 
, Ruao 
, Ruap 
) , throughout the world, is a common last name. The last name รัว is habitual in Colombia, where it is quite a common surname, Portugal, and Andorra. Measured by absolute frequency, this name is the most popular in Colombia, Portugal, and Argentina. Much less frequently, รัว is the forename as well as the last name.