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Cognomen Fongjam (Fongjam ) , across the world, is a very rare last name. The family name Fongjam is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Fongjam | Thailand |
Ladda, Suphap, Sirirat, Tanawut, Taksina, Supreeya, Rungnapa, Jatuphon, Naputsaphon, and Kanjananat