Surname Yaisang (Yaisang 
) , in all the world, is a very rare last name. The family name Yaisang is habitual in Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. Very seldom, Yaisang is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yaisang | Thailand, India |