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Throughout the world, Ong (Ong
, ออง
, オン
, along with others...) is a common epicene first name. The forename Ong is characteristic of South-eastern Asia, particularly Singapore, where it is quite a common gender-neutral name, Malaysia, and Brunei, where it is quite a common boy's name. In absolute terms, it is commonest in China, Indonesia, and Malaysia. Also, Ong is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ong | Singapore, Philippines, Malaysia, United States, Indonesia |
| อง, ออง | Thailand |
| オン | Japan |
| Онг | Belarus, Russia, Ukraine |
| 옹 | South Korea |
Ong is also a name for the fictitious and mythical characters: .