In all the world, Seyfettin (Seyfettin 
, Сейфеттин 
, Сейфеддин 
) is quite a rare male first name. The forename Seyfettin is characteristic of Turkey, where it is quite a rare masculine name, North Macedonia, where it is a rare male name, and Austria. Measured by absolute frequency, this name is the most popular in Turkey, France, and Iraq. Much less frequently, Seyfettin is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Seyfettin | Turkey, Saudi Arabia, Iraq, France, Germany |
| Сеыфеттин, Сейфеттин | Russia |
| Сейфеддин | Kazakhstan, Ukraine, Russia |
|
seyfettin karadayı Turkish actor, TR (b. 1923) |
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| seyfettin asal (b. 1901) |
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| seyfettin başçıllar Turkish author, TR (b. 1930) |
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| seyfettin sucu TR (b. 1942) |
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| seyfettin çilesiz (b. 1950) |
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| seyfettin yılmaz Turkish politician, TR (b. 1968) |
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| seyfettin erşahin (b. 1960) |
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| seyfettin kurtulmuş Turkish association football player, TR (b. 1973) |
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| seyfettin azizoğlu TR (b. 1967) |
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| seyfettin erdoğan researcher |
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| seyfettin ciftci researcher |
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| seyfettin erdem researcher (ORCID 0000-0001-5742-1293) |
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| seyfettin beytemür Shah-Armens |
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| seyfettin özkasap TR |
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