Family name Yap Lay Yuen (Yap Lay Yuen 
) , globally, is an extremely rare last name. The surname Yap Lay Yuen is habitual in South-eastern Asia, particularly Malaysia, where it is an extremely rare surname. More prevalently, Yap Lay Yuen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yap Lay Yuen | Malaysia |