Family name Leyau (Leyau 
) , across the world, is a very rare cognomen. The family name Leyau is characteristic of South-eastern Asia, particularly Singapore, where it is a rare surname, and Malaysia, where it is a very rare surname. Very seldom, Leyau is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Leyau | Malaysia, Singapore, India |