Cognomen Omar Adan (Omar Adan 
) , worldwide, is an extremely rare family name. The last name Omar Adan is characteristic of Latin America and the Caribbean, particularly Chile, where it is a very rare surname. Much more prevalently, Omar Adan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Omar Adan | Peru, Chile, Mexico, Guatemala, Ecuador |