Ryazan is a city and the administrative center of Ryazan Oblast, Russia, located on the Oka River 196 kilometers southeast of Moscow. An economically important educational institution in the city is the Ryazan State Medical University. Ryazan is one of the leading hubs for high-tech innovation and development in Russia. The Gorky Library serves Ryazan as well as Ryazan Oblast. It is the largest library in the region.