Cognomen Wilihan (Wilihan 
) , in the world, is an extremely rare surname. The cognomen Wilihan is characteristic of Latin America and the Caribbean, particularly Nicaragua, where it is a very rare surname, Peru, where it is an extremely rare surname, and Venezuela. Likewise, Wilihan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wilihan | Brazil, Peru, Venezuela, Nicaragua |