Globally, 雷森 (Risen 
, Raison 
, Renson 
) is quite a common epicene first name. The first name 雷森 is characteristic of the Democratic Republic of the Congo, where it is quite a rare unisex name, United Arab Emirates, where it is a rare boy's name, and the Dominican Republic. In absolute terms, it most frequently occurs in the Democratic Republic of the Congo, Philippines, and India. Also, 雷森 is the last name as well as the forename.