Irbeysky District is an administrative and municipal district (raion), one of the forty-three in Krasnoyarsk Krai, Russia. It is located in the southwest of the krai and borders with Kansky and Ilansky Districts in the north, Irkutsk Oblast in the east and south, Rybinsky District in the southwest, and with Sayansky District in the west. The area of the district is 10,921 square kilometers (4,217 sq mi). Its administrative center is the rural locality of Irbeyskoye. Population: 16,784 (2010 census); 19,181 ; 21,572 (1989 Soviet census). The population of Irbeyskoye accounts for 27.9% of the district's total population.