Family name Wailah (Wailah 
) , around the world, is a rare last name. The cognomen Wailah is habitual in Malaysia, where it is a rare surname, Indonesia, where it is a very rare surname, and Nigeria, where it is an extremely rare surname. Very seldom, Wailah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wailah | Philippines, Thailand, Indonesia, Nigeria, Malaysia |