The pogroms during the Russian Civil War were a wave of mass murders of Jews, primarily in Ukraine, during the Russian Civil War. In the years 1918–1920, there were 1,500 pogroms in over 1,300 localities, in which up to 250,000 were murdered. All armed forces operating in Ukraine were involved in the killings, in particular the anti-Communist Ukrainian People's Army and Armed Forces of South Russia. It is estimated that more than a million people were affected by material losses, 50,000 to 300,000 children were orphaned, and half a million were driven out from or fled their homes. The Whitaker Report of the United Nations cited the massacre of 100,000 to 250,000 Jews in more than 2,000 pogroms which occurred during the White Terror in Russia as an act of genocide.

Pogroms in the Russian Empire were large-scale, targeted, and repeated anti-Jewish rioting that began in the 19th century. Pogroms began to occur after Imperial Russia, which previously had very few Jews, acquired territories with large Jewish populations from the Polish–Lithuanian Commonwealth and the Ottoman Empire from 1772 to 1815. These territories were designated "the Pale of Settlement" by the Imperial Russian government, within which Jews were reluctantly permitted to live. The Pale of Settlement primarily included the territories of Poland, Ukraine, Belarus, Bessarabia, Lithuania and Crimea. Jews were forbidden from moving to other parts of European Russia, unless they converted from Judaism or obtained a university diploma or first guild merchant status. Migration to the Caucasus, Siberia, the Far East or Central Asia was not restricted.