Family name มหัจฉริยวงศ์ (มหัจฉริยวงศ์ 
) , in all the world, is a very rare surname. The last name มหัจฉริยวงศ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| มหัจฉริยวงศ์ | Thailand |