Cognomen Autapao (Autapao 
) , in the entire world, is a very rare last name. The cognomen Autapao is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Autapao | Thailand |
Janya, Surang, Chanon, Nawaporn, Prapadsorn, and Phitchanan