The Cirran Mountains was a location on the planet Bajor.

It was noted as being a beautiful place that was untouched by the Cardassians during the Occupation of Bajor. An order of Bajoran monks led by Prylar Obanak Keelen had a monastery in the Cirran Mountains and were tasked with the protection of the Red Orbs of Jalbador. They were also suspected to have had a complete list of prophecies of the future. (DS9 novels: Millennium, Inferno)