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Family name Phanvongkham (Phanvongkham
) , all over the world, is a rare last name. The family name Phanvongkham is characteristic of Laos, where it is quite a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phanvongkham | Laos, United States |