The Battle of Kiev was the German name for the operation that resulted in a very large encirclement of Soviet troops in the vicinity of Kiev during World War II. It is considered the largest encirclement of troops in history. The operation ran from 23 August – 26 September 1941 as part of Operation Barbarossa. In Soviet military history it is referred to as the Kiev Defensive Operation (Киевская оборонительная операция), with somewhat different dating of 7 July – 26 September 1941.

Nearly the entire Southwestern Front of the Red Army was encircled with the Germans claiming 665,000 captured. However, the Kiev encirclement was not complete, and small groups of Red Army troops managed to escape the cauldron days after the German pincers met east of the city, including head quarters of Marshall Semyon Budyonny, Marshall Semen Timoshenko and Commissar Nikita Khrushchev. The commander of the Southwestern Front—Mikhail Kirponos—was trapped behind enemy lines and killed while trying to break through. The Kiev disaster was an unprecedented defeat for the Red Army, exceeding even the Minsk tragedy of June–July 1941. On 1 September, the Southwestern Front numbered 752–760,000 troops (850,000 including reserves and rear service organs), 3,923 guns & mortars, 114 tanks and 167 combat aircraft.

The Battle of Kiev may refer to one of two battles of World War II:

Kiev was besieged on numerous occasions, the most notable being:

Other battles for Kiev include:

Kiev or Kyiv (Ukrainian: Київ [ˈkɪjiw] ( listen); Russian: Киев) is the capital and the largest city of Ukraine, located in the north central part of the country on the Dnieper River. The population as of the 2001 census was 2,611,300. However, higher numbers have been cited in the press.

Kiev is an important industrial, scientific, educational and cultural centre of Eastern Europe. It is home to many high-tech industries, higher education institutions and world-famous historical landmarks. The city has an extensive infrastructure and highly developed system of public transport, including the Kiev Metro.

The name Kiev is said to derive from the name of Kyi, one of four legendary founders of the city (brothers Kyi, Shchek, Khoryv, and sister Lybid). During its history, Kiev, one of the oldest cities in Eastern Europe, passed through several stages of great prominence and relative obscurity. The city probably existed as a commercial centre as early as the 5th century. A Slavic settlement on the great trade route between Scandinavia and Constantinople, Kiev was a tributary of the Khazars, until seized by the Varangians (Vikings) in the mid-9th century. Under Varangians rule, the city became a capital of the Rus', the first East Slavic state. Completely destroyed during the Mongol invasion in 1240, the city lost most of its influence for the centuries to come. It was a provincial capital of marginal importance in the outskirts of the territories controlled by its powerful neighbours; first the Grand Duchy of Lithuania, followed by Poland and Russia.

Heinz Wilhelm Guderian (17 June 1888 – 14 May 1954) was a German general during World War II. He was a pioneer in the development of armored warfare, and was the leading proponent of tanks and mechanization in the Wehrmacht (German Armed Forces). Germany's panzer (armored) forces were raised and organized under his direction as Chief of Mobile Forces. During the war, he was a highly successful commander of panzer forces in several campaigns, became Inspector-General of Armored Troops, rose to the rank of Generaloberst, and was Chief of the General Staff of the Heer in the last year of the war.

Guderian was born in Kulm, West Prussia (now Chełmno, Poland). From 1901 to 1907 Guderian attended various military schools. He entered the Army in 1907 as an ensign-cadet in the (Hanoverian) Jäger Bataillon No. 10, commanded at that point by his father, Friedrich Guderian. After attending the war academy in Metz he was made a Leutnant (full Lieutenant) in 1908. In 1911 Guderian joined the 3rd Telegraphen-Battalion of the Prussian Army Signal Corps. On October 1, 1913, he married Margarete Goerne with whom he had two sons, Heinz Günter (born Aug 2nd 1914 to 2004) and Kurt (born 17 September 1918 to 1984). Both sons became highly decorated Wehrmacht officers during World War II; Heinz Günter became a Panzer general in the Bundeswehr after the war.