Globally, Riens (Riens 
) is a rare predominantly feminine, but very seldom masculine given name. The first name Riens is habitual in South-eastern Asia, particularly Indonesia, where it is a very rare feminine name. Also, Riens is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Riens | Netherlands, Spain, United States, Indonesia, Germany |