Surname อ่ำจั่น (Amchan 
, อ่ำจั่น) , all over the world, is a very rare last name. The cognomen อ่ำจั่น is habitual in Georgia, where it is a very rare surname, Thailand, and the United States, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in Thailand, China, and the United States. Likewise, อ่ำจั่น is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Amchan | China, United States, Thailand, Georgia, India |