Cognomen 瑞尔 (Riel 
, 瑞尔 
) , in the world, is a common last name. The cognomen 瑞尔 is characteristic of Western Europe, particularly Netherlands, where it is quite a common surname, Belgium, where it is quite a rare surname, and Austria. In absolute terms, it is commonest in Netherlands, Philippines, and the United States. Much less frequently, 瑞尔 is the forename as well as the last name.