Alaca () may refer to the following places in Turkey:
Alaca, Çorum, a large district in Çorum Province Alaca Dam Alaca, Borçka, a village in Artvin Province Alaca, Beşiri, a village in Batman Province Alaca, Elâzığ, a village in Elâzığ Province Alaca, Aydıntepe, a village in Bayburt Province Alaca, Kulp, a village in Diyarbakır Province Alaca, Aziziye, a neighbourhood in Erzurum Province Alaca, Hınıs, a village in Erzurum Province Alaca, İnebolu, a village in Kastamonu Province Alaca, Köprüköy
See also Alaca Höyük, an archaeological site in Turkey Alaja (disambiguation)