Cognomen Aycan (Aycan 
) , in all the world, is quite a common family name. The last name Aycan is characteristic of Turkey, where it is quite a rare surname, Bulgaria, where it is a rare surname, and Belgium. Measured by absolute frequency, it is commonest in Turkey, Germany, and Bulgaria. More frequently, Aycan is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Aycan | Turkey, Germany, Belgium, Bulgaria, Iraq |
| sefer aycan TR (b. 1963) |
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| osman emre aycan researcher |
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| zehra aycan researcher |
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| murat aycan researcher (ORCID 0000-0003-2677-404X) |
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| zeynep aycan researcher |
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| ayşe aycan researcher (ORCID 0000-0002-9730-5454) |
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| abdurrahman aycan researcher |
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| i̇lker o aycan researcher |
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| k aycan researcher |
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