Karahisar (disambiguation)

Karahisar ("black castle" in Turkish) may refer to the following places in Turkey:


 * Afyonkarahisar, a city in Afyon Province (formerly known as Karahisar-i Sahip, Afium-Kara-hissar, Afyon Karahisar)
 * Şebinkarahisar, a district center in Giresun Province (formerly known as Kara Hisar-ı Şarkî, Şarkî Kara Hisar, Şapkarahisar)
 * Karahisar, a town in Tavas district of Denizli Province
 * Karahisar, Çorum
 * Karahisar, Keşan