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Cognomen Kannaphak (Kannaphak ) , in the world, is an extremely rare last name. Much more frequently, Kannaphak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kannaphak | Thailand |
Satjaritanun, Songkwan, Kittipiphat, Phaengama, Jampangam, Tantasith, Phetcharat, and Thaimanotham