Cognomen ريكن (Riken 
, Ricken 
, ريكن 
) , in all the world, is quite a rare last name. The surname ريكن is characteristic of Germany, where it is quite a rare surname, Denmark, and Sweden, where it is a rare surname. In absolute terms, it most frequently occurs in Germany, Brazil, and the United States. Likewise, ريكن is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Riken | Japan, Germany, Indonesia, United States, India |
| Ricken | Germany, United States, India, Brazil, Democratic Republic of the Congo |
| ريكن | Iraq |