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Surname Syvilayvong (Syvilayvong ) , across the world, is an extremely rare cognomen. The family name Syvilayvong is characteristic of Northern America, particularly the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Syvilayvong | United States |
Sony, Jordan, Phouvihane, and Soudavanh