The Kajaani railway station was built from 1904 to 1905, when the railway from Iisalmi to Kajaani was completed as an extension to the Savonia railway. The station building was designed by Gustaf Nyst

Kajaani, is a town in Finland and the regional capital of Kainuu. Kajaani is located southeast of Lake Oulu, which drains into the Gulf of Bothnia through the Oulu River. The population of Kajaani is