Isaris

thumb|alt=View of a valley with many stone houses along the hill. These are small with red brick roofs.|View of the village Isaris () is a village and a community in the municipality of Megalopoli, Arcadia, Greece. It is situated in the mountains west of the Alfeios valley, at about 750 m elevation. It is considered a traditional settlement. It is 2 km east of Vastas, 5 km northwest of Chranoi and 11 km southwest of Megalopoli. The community includes the small villages Petrovouni and Chrousa.

== Topography == It is located 51 km west of Tripoli and 11 km southwest of Megalopolis. The settlement is built amphitheatrically on the eastern slopes of Mount Saint Ilias (Άγιος Ηλίας), providing a panoramic view of the Megalopolis plain to the northeast and the Messinian Valley to the south. The area is surrounded by a diverse mix of vegetation, including oak trees, chestnuts, holly, heather, and holm oaks. The railway station, which was situated a short distance from the main settlement, was a stop for trains on the Athens-Kalamata route from 1899 until the 1980s.