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Surname Chaiyajuk (Chaiyajuk ) , all around the world, is a very rare last name. The family name Chaiyajuk is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Chaiyajuk | Thailand |
Maryura, Chanchai, Teerakan, and Wutthichai