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Cognomen Khlongkan (Khlongkan ) , around the globe, is a very rare last name. The family name Khlongkan is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Khlongkan | Thailand |
Natsit, Sirichan, Aritsara, Rungnapha, Butsarakum, and Supattharachai