Cognomen Wailui (Wailui 
) , in the entire world, is an extremely rare family name. The last name Wailui is habitual in Sub-Saharan Africa, particularly Nigeria, where it is an extremely rare surname. Much less frequently, Wailui is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wailui | Brazil, Nigeria |