Family name Anavach (Anavach 
) , throughout the world, is an extremely rare last name. The family name Anavach is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, Anavach is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Anavach | Thailand |
Saithong, Akarabutr, and Chatsirikul