Cognomen Tavonkasianan (Tavonkasianan 
) , in the world, is a very rare family name. The cognomen Tavonkasianan is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Tavonkasianan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tavonkasianan | Thailand |