The following is a list of massacres that have occurred in Finland (numbers may be approximate):
| Name | Date | Location | Deaths | Notes | |
|---|---|---|---|---|---|
| Åbo Bloodbath | November 10, 1599 | Turku | 14 | ||
| Klaukkala axe murders | May 10, 1899 | Nurmijärvi | 7 | ||
| September 1917 | Viipuri | 20+ | Massacre of Kornilovite high-ranking officers by Bolshevism-supporting soldiers[1] | ||
| Toijala executions | April 15, 1918 | Toijala | 100 | The Red forces killed about 100 members of the White Guard, bourgeois, civil servants and schoolchildren in the area[2] | |
| Toijala executions | April 25-May 3, 1918 | Toijala | 122 | ||
| Koria massacre | 1918 | Kouvola | 120 | ||
| Varkaus executions | Varkaus | 170-180 | |||
| Suinula massacre | January 31, 1918 | Kangasala | 17 | Thirty seriously wounded. | |
| Vihti executions | February 1, 1918 | Vihti | 18 | ||
| Nurmijärvi murders | February 1, 1918 | Nurmijärvi | 4 | ||
| Pori lyceum massacre | February 6, 1918 | Pori | 11 | ||
| Lottery of Huruslahti | February 21, 1918 | Varkaus | 90 | ||
| Harmoinen sanatorium massacre | March 10, 1918 | Kuhmoinen | 13 | ||
| Koliahde massacre | March 10, 1918 | Noormarkku | 16 | ||
| Länkipohja massacre | March 16, 1918 | Jämsä | 80 | ||
| Kuurila train murders | April 19, 1918 | Hämeenlinna | 23 | ||
| Lappeenranta massacre | April 25, 1918 | Lappeenranta | 23 | ||
| Viipuri County Prison massacre | April 27–28, 1918 | Viipuri | 30 | ||
| Valkeakoski Women's Guard massacre | May 1, 1918 | Valkeakoski | 36 | ||
| Tampere executions | April–May, 1918 | Tampere | 600 | ||
| Vyborg massacre | April–June, 1918 | Viipuri | 400 | Massacre of ethnic Russians and foreigners | |
| Perttula executions | May 18–24, 1918 | Nurmijärvi | 21[3] [4] | Seven of the victims were murdered on the eighteenth, five on the nineteenth, two on the twentieth, five on the twenty-first and one on the twenty-fourth. One of the victims, Kalle Fredrik Aaltio (b. December 20, 1882), was decapitated on May 19, 1918. As were three other individuals on May 21 of that same year. | |
| Västankvarn executions | May 2–26, 1918 | Ingå | 60+ | ||
| Karhiniemi axe murders | March 17, 1943 | Huittinen | 6 | ||
| Soso railway stop murders | April 3, 1953 | Muhos | 4 | ||
| Lake Bodom murders | June 5, 1960 | Espoo | 3 | 1 injured; perpetrator unknown | |
| Pihtipudas police killings | March 7, 1969 | Pihtipudas | 4 | ||
| Raumanmeri school shooting | January 24, 1989 | Rauma | 2 | ||
| Kotka murders | April 18–19, 1994 | Kotka | 3 | ||
| Helsinki Shooting Club killings | February 21, 1999 | Helsinki | 3 | 1 injured | |
| Myyrmanni bombing | October 11, 2002 | Vantaa | 7 | 159 injured | |
| Jokela school shooting | November 7, 2007 | Tuusula | 9 | 1 injured | |
| Kauhajoki school shooting | September 23, 2008 | Kauhajoki | 11 | 1 injured | |
| Sello mall shooting | December 31, 2009 | Espoo | 6 | ||
| Hyvinkää shooting | May 26, 2012 | Hyvinkää | 2 | 8 injured | |
| 2017 Turku attack | August 18, 2017 | Turku | 2 | 8 injured + attacker injured |