Across the world, Iuis (Iuis 
) is a very rare boy's given name. The forename Iuis is characteristic of Latin America and the Caribbean, particularly the Dominican Republic, where it is a rare male name, and Colombia, where it is a very rare boy's name. Very seldom, Iuis is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Iuis | South Africa, Mexico, Dominican Republic, Colombia, United States |