Kyösti Kallio, Finnish farmer, banker, and politician, 4th President of Finland (d. 1940)
Kyösti Kallio (Finnish pronunciation: [ˈkyø̯sti ˈkɑlːio]; 10 April 1873 – 19 December 1940) was a Finnish politician of the Agrarian League who served as the fourth president of Finland from 1937–1940. He was the first President of Finland to resign and the only president to die in office.

Kallio was a prominent leader of the Agrarian League, and served as Prime Minister four times and Speaker of the Parliament six times.