Cognomen Chanatnan (Chanatnan 
) , in the world, is an extremely rare family name. Much more frequently, Chanatnan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chanatnan | Thailand |
Saion, Nunhnu, Sotnan, Srirat, Poukpromma, Subsorn, Pimharn, Tepumnuaysakul, Panchara, Thongrak, Panaphromphat, Jitsakulchai, and Chanthanon