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Cognomen Phathachack (Phathachack ) , in the world, is a very rare surname. The family name Phathachack is characteristic of Northern America, particularly the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phathachack | United States |
Sam, Joe, Tony, Tymia, Melinda, Soutsivanh, Michelle, Bounneua, Khamsimuang, and Khanthaly