| Date | Location | Region | Dead | Injured | Total | Description |
|---|
| 25 August 1923 | Solberg | Uusimaa | 1 [a] | 3 | 4 | A man shot and wounded three men who attacked him and then killed himself. [1] |
| 15 January 1926 | Helsinki | Uusimaa | 4 [a] | 0 | 4 | Kaivopuisto familicide: A major shot and killed his wife and two children with a handgun before killing himself. [2] |
| 1 June 1926 | Taavetti | South Karelia | 3 | 1 | 4 | Taavetti bank robbery: Two men armed with handguns shot and killed three people and wounded another during a bank robbery. They fled the scene and were later arrested. [3] |
| 4 September 1927 | Simola | South Savo | 1 | 3 | 4 | A man shot and killed one person and wounded three others. [4] |
| 26 March 1928 | Kärkölä | Uusimaa | 2 [a] | 2 | 4 | A man armed with a handgun killed one person and wounded two others across two households before killing himself. [5] |
| 10 September 1928 | Kuusaanniemi | Kymenlaakso | 4 [a] | 0 | 4 | A man shot and killed his wife and two children with a handgun before killing himself. [6] |
| 13 June 1929 | Reposaari | Satakunta | 2 [a] | 2 | 4 | A drunken man shot and killed one person and wounded two others with a handgun before killing himself. [7] |
| 27 January 1930 | Inkeroinen | Kymenlaakso | 3 [a] | 1 | 4 | A man shot three other men during a drunken argument, killing two and wounding one, before attempting suicide. [8] The perpetrator later died in hospital. [9] |
| 14 February 1930 | Muurame | Central Finland | 4 [a] | 0 | 4 | A jealous man killed his girlfriend, child and another man before killing himself. [10] |
| 13 June 1930 | Helsinki | Uusimaa | 3 | 1 [a] | 4 | A man shot and killed his wife and two children with a handgun before attempting suicide. [11] |
| 15 February 1931 | Helsinki | Uusimaa | 3 | 1 | 4 | A drunken man opened fire with a handgun inside an apartment located in Hakaniemi, killing three and wounding one before the weapon malfunctioned and the perpetrator was arrested. [12] |
| 4 May 1934 | Vuojoki | Satakunta | 3 [a] | 1 | 4 | A man killed his two sons and wounded his wife with a handgun before killing himself. [13] |
| 26 June 1935 | Helsinki | Uusimaa | 4 [a] | 0 | 4 | A man armed with two handguns killed his wife, son, another woman and himself in Ullanlinna. [14] |
| 9 December 1935 | Varkaus | North Savo | 2 [a] | 2 | 4 | A man armed with a handgun killed a waitress and wounded two others in a restaurant before killing himself. [15] |
| 26 January 1937 | Hietala | Viipuri | 7 [a] | 0 | 7 | An agronomic killed his wife and five children with a handgun before killing himself. [16] |
| 16 September 1938 | Mämmälä | Kymenlaakso | 5 [a] | 1 | 6 | 1938 Sippola shootings: A man armed with a handgun went on a shooting spree killing four people and wounding one other before killing himself. [17] |
| 12 August 1939 | Maavesi | North Savo | 3 [a] | 1 | 4 | A man armed with a rifle and a shotgun killed his father, a police officer and wounded his neighbor before killing himself. [18] |
| 6 September 1939 | Parikkala | South Karelia | 4 [a] | 1 | 5 | A man shot and killed three people and wounded another with a handgun before killing himself. [19] |
| 14 October 1939 | Koskenkorva | South Ostrobothnia | 6 [a] | 0 | 6 | A man shot and killed his wife and four children with a handgun before killing himself. [20] |
| 9 August 1943 | Lumivaara | Viipuri | 4 [a] | 0 | 4 | A man shot and killed his three children before killing himself. [21] |
| 17 April 1944 | Valkeaviita | Kanta-Häme | 4 [a] | 1 | 5 | A farmer killed three neighbors and wounded another with a handgun before killing himself. [22] |
| 18 December 1944 | Muhos | North Ostrobothnia | 4 [a] | 0 | 4 | A prison guard armed with a rifle shot and killed his two children, a maidservant and himself. [23] |
| 19 April 1945 | Valkeamäki | South Savo | 4 [a] | 0 | 4 | A man armed with a handgun killed his wife, a daughter from previous marriage and her cousin. The man lit the house on fire, killed several farm animals and then killed himself. [24] |
| 27 February 1947 | Nappa | Kymenlaakso | 5 [a] | 0 | 5 | A farmer armed with a handgun shot and killed his wife, three children and himself. [25] |
| 12 April 1951 | Sodankylä | Lapland | 4 [a] | 1 | 5 | A chauffeur killed his wife, two daughters and wounded his mother-in-law with a handgun before killing himself. [26] |
| 8 July 1951 | Elfvik | Uusimaa | 4 [a] | 0 | 4 | An entrepreneur killed his ex-wife, son and a police officer before killing himself. [27] |
| 22 April 1952 | Helsinki | Uusimaa | 4 [a] | 0 | 4 | A man killed his parents and a sibling with a handgun before killing himself in Töölö. [28] |
| 8 May 1952 | Hämeenkyrö | Pirkanmaa | 4 [a] | 0 | 4 | A farmer killed his wife and two children with a handgun before killing himself. [29] |
| 18 September 1952 | Helsinki | Uusimaa | 1 | 3 [a] | 4 | A shootout during a prison break left one guard dead and three others wounded. [30] |
| 2 November 1952 | Kompero | North Karelia | 1 | 3 | 4 | A man armed with a handgun shot and killed his brother-in-law, wounded his in-laws and his wife before being arrested. [31] |
| 5 May 1953 | Alakylä | South Ostrobothnia | 3 | 2 | 5 | A man killed his brother, two nephews and wounded his sister-in-law and niece with a handgun before being arrested. [32] |
| 9 February 1954 | Punkalaidun | Pirkanmaa | 4 [a] | 0 | 4 | A man killed his wife and two children with a shotgun before killing himself. [33] |
| 25 September 1954 | Helsinki | Uusimaa | 4 [a] | 1 | 5 | A man killed his mother, sister and a nephew and wounded his father before killing himself in Vallila. [34] |
| 26 March 1957 | Itä-Aure | Pirkanmaa | 4 [a] | 3 | 7 | 1957 Kuru shootings: A man armed with two rifles shot and killed two police officers and wounded three others before killing himself. The perpetrator also lit fires and had shot and killed his father two days before the attack. [35] |
| 14 August 1958 | Linnankoski | South Karelia | 5 [a] | 2 | 7 | 1958 Linnankoski shootings: A man armed with a handgun went on a shooting spree killing four people and wounding two others before killing himself. [36] |
| 15 March 1961 | Lappeenranta | South Karelia | 4 | 0 | 4 | A bank manager killed his wife and three daughters with a handgun before being arrested. [37] |
| 9 December 1963 | Inkere | Southwest Finland | 1 | 3 | 4 | A teenager armed with a double-barreled shotgun went on a shooting spree killing one person and wounding at least three others before being arrested. [38] |
| 7 March 1969 | Korppinen | Central Finland | 4 | 0 | 4 | Pihtipudas police murders: A man armed with a rifle shot and killed four police officers before being arrested. [39] |
| 8 November 1971 | Rautalampi | North Savo | 5 [a] | 0 | 5 | A farmer shot and killed his wife and three daughters with a hunting rifle before killing himself. [40] |
| 27 November 1971 | Kirkkonummi | Uusimaa | 4 [a] | 0 | 4 | An insurance agent shot and killed his wife and two children with a handgun before killing himself. [41] |
| 10 November 1972 | Juokslahti | Central Finland | 1 [a] | 3 | 4 | A man armed with a shotgun shot and wounded his wife and parents-in-law before killing himself. [42] |
| 30 July 1973 | Helsinki | Uusimaa | 1 | 4 [a] | 5 | A man armed with a handgun shot and killed one person and wounded three others before being shot and wounded by police. [43] |
| 5 April 1975 | Kanunki | Southwest Finland | 4 | 0 | 4 | A man killed his parents and two siblings with a handgun before fleeing. He was later arrested in Kuopio. [44] |
| 5 October 1982 | Tampere | Pirkanmaa | 4 [a] | 0 | 4 | A man shot and killed his wife and two children before killing himself. [45] |
| 25 April 1987 | Menkijärvi | South Ostrobothnia | 4 | 0 | 4 | A man armed with a hunting rifle killed his ex-wife and her three siblings before being arrested. [46] |
| 18 October 1990 | Inkere | Southwest Finland | 3 [a] | 1 | 4 | A man shot and killed his two children and wounded another one before killing himself. [47] |
| 17 February 1991 | Kerava | Uusimaa | 4 [a] | 0 | 4 | A police officer killed his wife and two children with a handgun before killing himself. [48] |
| 21 February 1992 | Seinäjoki | South Ostrobothnia | 4 [a] | 0 | 4 | A man killed his wife and two children with a handgun before killing himself. [49] |
| 28 March 1992 | Hamina | Kymenlaakso | 3 [a] | 2 | 5 | A man armed with a handgun killed two people including his ex-wife and wounded two others inside an apartment before killing himself. [50] |
| 26 August 1992 | Haukipudas | North Ostrobothnia | 3 [a] | 1 | 4 | A man armed with a shotgun killed his wife, a police officer and wounded another policeman before killing himself. [51] |
| 12 September 1992 | Lappeenranta | South Karelia | 1 | 3 | 4 | A man shot and killed one person and wounded three others at a horse racing venue. [52] |
| 27 February 1993 | Ikola | South Ostrobothnia | 5 [a] | 0 | 5 | A man shot and killed his parents, wife and son before killing himself. [53] |
| 15 November 1997 | Joroinen | North Savo | 4 [a] | 0 | 4 | A man killed his wife, daughter and mother-in-law with a semi-automatic shotgun before killing himself. [54] |
| 14 June 1998 | Pieksämäki | South Savo | 1 | 4 | 5 | A man armed with two handguns killed his wife, wounded four neighbors and tried to shoot several others before being arrested. [55] |
| 21 February 1999 | Helsinki | Uusimaa | 3 | 1 | 4 | Helsinki Shooting Club murders: A woman armed with a rented semi-automatic handgun killed three people and wounded one other at a shooting range before fleeing. She was later arrested at the Helsinki Airport. [56] |
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