Last name Xaiyasith (Xaiyasith 
) , around the globe, is a rare family name. The surname Xaiyasith is habitual in South-eastern Asia, particularly Laos, where it is quite a rare surname. Very seldom, Xaiyasith is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Xaiyasith | Laos |