Cognomen อ้อง (Ong 
, อ้อง) , in the world, is a widespread surname. The surname อ้อง is habitual in Singapore, where it is a prevalent surname, Malaysia, where it is a common surname, and Bermuda (explore the name in all countries). Measured by absolute frequency, it is the most numerous in South-eastern Asia, particularly Malaysia, Singapore, and Philippines. Also, อ้อง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ong | Philippines, Singapore, United States, Indonesia, Malaysia |