Eskihisar

Eskihisar (literally "old fortress" in Turkish) may refer to the following places in Turkey :


 * Bolu, capital of the northern province of Bolu, Ancient Claudiopolis (in Honoriade)
 * Eskihisar (Denizli), a village in the central (Denizli) district of Denizli Province
 * Eskihisar, (Elmalı), a village in the district of Elmalı, Antalya Province
 * Eskihisar (Gebze), a harbour village in Eastern Marmara
 * Eskihisar, (Sultanhisar), a village in the district of Sultanhisar, Aydın Province
 * Yeni Eskihisar, a stratigraphic formation in Yatağan, Muğla Province