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Throughout the world, Seyn (เซน , Seyn
, Сеин
) is a rare principally boy's, but very seldom female first name. The given name Seyn is habitual in Mali, where it is a rare male name, and Thailand, where it is a rare mostly masculine, but seldom female name. More frequently, Seyn is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| เซน | Thailand |
| Seyn | India, Mali, Nigeria, Germany, Netherlands |
| Сеин | Ukraine, Russia, Kazakhstan |
| Сейн | Ukraine, Russia |