Cognomen Kaşan (Kaşan 
) , worldwide, is a rare family name. The cognomen Kaşan is characteristic of Western Asia, particularly Turkey, where it is quite a rare surname.
Ali, Davut, Leyla, Taner, Eli F, Ejder, Hasan, Hakan, Hakki, Havva, Vedat, Veysi, Faruk, Fatma, Feyza, Osman, Yusuf, Zafer, Zeyni, Zehra, Ömer, Ümmü, Deniz, Recep, Rafet, Kadri, Cem, Musa, Arif, Baki, Esra, Eren, Hava, Zeki, Umut, Melek, Mahmut, Mesut, Murat, Samet, Sevgi, Sedat, Ari F, Abbas, Ayşe, Aysel, Ayhan, Ahmet, Metin, and Mehmet