Family name Xayyaphet (Xayyaphet 
) , in the world, is a rare last name. The cognomen Xayyaphet is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname. Also, Xayyaphet is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Xayyaphet | Laos |