Orcistus

Orcistus or Orkistos () was a city originally in the northeast of ancient Phrygia and later a bishopric in the Roman province of Galatia Secunda, situated south of the town now called Ortaköy, Afyonkarahissar, and previously Alikel Yaila.

== City status == Originally an independent city of Galatia, it was annexed to Nacolea in Phrygia in the late 3rd century AD but was restored to independence by Emperor Constantine the Great, to whom the inhabitants of Orcistus appealed in 325. Constantine granted their request in 331. He speaks of them as "supporters of the most holy religion", an ambiguous term that may perhaps refer to Christianity.