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Cognomen Chaiya (ไชยา , Chaiya
, ชัยยะ
, among others...) , around the world, is a common family name. The family name Chaiya is habitual in Thailand, where it is quite a common surname, Sweden, where it is a rare surname, and Malaysia, where it is a very rare surname. In absolute terms, it most frequently occurs in Thailand, India, and Sweden. More prevalently, Chaiya is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ไชยา, ชัยยะ, ชัยญา, ไชยยา | Thailand |
| Chaiya | India, Thailand, United States, Malaysia, Sweden |