Kaysyn (; , Kaysın) is a rural locality (a selo) in Ust-Kansky District, the Altai Republic, Russia. The population was 244 as of 2016. There are 3 streets.
Geography Kaysyn is located 13 km west of Ust-Kan (the district's administrative centre) by road. Kozul is the nearest rural locality.Расстояние от Кайсына до Усти-Кана
References