Cognomen 瑞森 (瑞森 
, Riessen 
) , across the world, is quite a rare family name. The last name 瑞森 is characteristic of Netherlands, where it is quite a rare surname, Australia, where it is a rare surname, and Sweden. In absolute terms, it is commonest in China, Netherlands, and the United States. More prevalently, 瑞森 is the forename as well as the last name.