Last name ชะอ้อน (Chaon 
, Cha-On 
, ชะอ้อน) , across the world, is a rare cognomen. The family name ชะอ้อน is habitual in France, where it is a rare surname, Thailand, and Malaysia, where it is a very rare surname. Measured by absolute frequency, the name is most common in France, the United States, and Thailand. Likewise, ชะอ้อน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chaon | Thailand, France, United States, India, Malaysia |
| Cha-On | United States, Philippines |