7 December

The second amnesty granted by Svinhufvud releases 6,500 prisoners and reduces sentences. At the same time, the State Regent also exonerated from criminal liability all Whites who had participated in unlawful executions or other war crimes during the war or in its aftermath.

10 December

P. E. Svinhufvud hands in his resignation as State Regent.

14 December

Prince Friedrich Karl, elected King of Finland, announces that he refuses the throne offered to him.

23 December

State Regent C. G. Mannerheim orders new parliamentary elections to be held in March 1919.