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Last name Klungthong (Klungthong ) , worldwide, is a very rare family name. The family name Klungthong is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Klungthong | Thailand |
Chalong, Kanjana, Akarawin, Siraprapa, Chonticha, Kitttipot, Hathairat, Paweenarach, Duangkamon, and Krittiyaporn