The following is a list of massacres that took place in the Soviet Union. For massacres that took place in countries that were once part of the Soviet Union, see the list of massacres in that country.
| Name | Date | Location | Deaths | Notes |
|---|---|---|---|---|
| Fântâna Albă massacre | April 1, 1941 | Northern Bukovina | 200-2000 | |
| Khaibakh massacre | January 27, 1944 | Chechnya, Soviet Union | 700 | |
| NKVD prisoner massacres | 1941 | Baltic states | 100,000 | |
| Novocherkassk massacre | starting June 2, 1962 | Novocherkassk | 23-70 | |
| Odessa Massacre | October 22–24, 1941 | Odessa | 25,000-34,000 | |
| Sumgait massacre | February 26 - March 1, 1988 | Sumgait | 32 | |
| Vinnytsia massacre | 1937–1938 | Vinnytsia | 9432 |
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