Family name ช่างหม้อ (ช่างหม้อ, Potisan 
) , around the world, is a rare cognomen. The cognomen ช่างหม้อ is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Potisan | United States, Thailand |