{Infobox military conflict
| conflict = Winter War
| partof = ایکینجی دونیا ساواشی
| image = Winter war.jpg
| image_size = 300px
| alt = A group of Finnish soldiers in snowsuits manning a heavy machine gun in a foxhole.
| caption = A Finnish machine gun crew during the Winter War
| date = 30 November 1939 – 13 March 1940 (۳ آی، ۱ هفته و ۶ گون)
| place = Eastern فنلاند
| territory = Cession of the Gulf of Finland islands, Karelian Isthmus, Ladoga Karelia, Salla, and Rybachy Peninsula, and lease of Hanko to the Soviet Union
| result = Moscow Peace Treaty (See Aftermath)
| combatant2 = شوروی
| combatant1 = فنلاند
Foreign volunteers
| commander2 = ايستالین Kirill Meretskov Kliment Voroshilov Semyon Timoshenko{refn|Commander of the Leningrad Military District Kiril Meretskov initially ran the overall operation against the Finns.[۱] The command was passed on 9 December 1939 to the General Staff Supreme Command (later known as Stavka), directly under Kliment Voroshilov (chairman), Nikolai Kuznetsov, ايستالین and Boris Shaposhnikov.[۲]
| commander1 = Kyösti Kallio Risto Ryti Carl Gustaf Emil Mannerheim
| strength2 = 425,000–760,000 soldiers[۶]
شوروی-فنلاند ساواشی (۱۹۳۹-۱۹۴۰) (اینگیلیسجه: Winter War) شوروی و قوْنشو اؤلکهسی قوشونو آراسیندا باش وئرن دؤیوش.ایکینجی دونیا ساواشینین بیر قیسمیدیر. فنلاند یئرینده اوز وئرمیشدیر
^[۳] 550,757 soldiers on 1 January 1940 and 760,578 soldiers by the beginning of March.[۴] In the Leningrad Military District, 1,000,000 soldiers[۵] and 20 divisions one month before the war and 58 divisions two weeks before its end.