Cognomen Kayalar (Kayalar 
) , in all the world, is quite a common family name. The last name Kayalar is habitual in Turkey, where it is quite a rare surname, Austria, where it is a rare surname, and Netherlands, where it is a very rare surname. In absolute terms, this name is the most popular in Turkey, Germany, and Myanmar.
| VARIANT | COUNTRY |
|---|---|
| Kayalar | United States, Germany, Myanmar, Turkey, Austria |
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lütfullah kayalar Turkish politician, TR (b. 1952) |
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| mazlum kayalar Turkish politician, TR (b. 1911) |
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| mehmed kayalar GR (b. 1914) |
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| defne kayalar Turkish actress and film producer, TR (b. 1975) |
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| ozgecan kayalar researcher |
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| emre kayalar researcher |
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| selahattin kayalar |
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| özge kayalar DE (b. 1996) |
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