Surname Xiah (Xiah 
) , around the world, is quite a rare cognomen. The last name Xiah is habitual in South-eastern Asia, particularly Malaysia, where it is quite a rare surname, Indonesia, where it is a very rare surname, and Vietnam, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Malaysia, Indonesia, and China. Much less frequently, Xiah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Xiah | Vietnam, United States, Indonesia, Malaysia, China |