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Family name Trọng (Trong
, Trọng
, チョン
) , in the entire world, is a common cognomen. The cognomen Trọng is habitual in Vietnam, where it is quite a common surname, Macao, where it is quite a rare surname, and Malaysia. Measured by absolute frequency, it most frequently occurs in Vietnam, Malaysia, and Japan. Likewise, Trọng is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Trong | Malaysia, France, Vietnam, United States, Thailand |
| Trọng | Canada, Japan, Vietnam, Australia, United States |
| チョン | Japan |