Surname รอยส์ (Roi 
, รอยส์ 
) , around the world, is a common last name. The family name รอยส์ is characteristic of Mongolia, where it is a common surname, Algeria, where it is quite a common surname, and Tunisia (explore the name in all countries). In absolute terms, it is commonest in Algeria, Myanmar, and Mongolia. Likewise, รอยส์ is the forename as well as the last name.