Last name Waiyan (Waiyan 
) , throughout the world, is a common cognomen. The cognomen Waiyan is characteristic of Myanmar, where it is quite a common surname, and Taiwan, where it is quite a rare surname. Likewise, Waiyan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Waiyan | Myanmar, Hong Kong, Taiwan, Indonesia, China |