Surname Riex (Riex 
) , in the world, is a very rare cognomen. The family name Riex is habitual in Sweden, where it is a rare surname, and Germany, where it is a very rare surname. Very seldom, Riex is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Riex | Peru, Germany, Philippines, Sweden, United States |