| Abbr. | Logo | Ideology | Founded | Founder | Leader | Website | European Parliament Group |
| V |  | Socialism, Eco-socialism, Feminism, Euroscepticism | 1917 | Zeth Höglund Carl Winberg | Nooshi Dadgostar | http://vansterpartiet.se |  |
Elections
| Date | Elections | % | Votes | Seats | |
| 2022 | 6,75 | 437.050 | 24 | 4th | |
| 2019 | EU | 6,80 | 282.300 | 1 | 7th |
| 2018 | 8,00 | 518.454 | 28 | 5th | |
| 2014 | 5,72 | 356.331 | 21 | 6th | |
| 2014 | EU | 6,30 | 234.272 | 1 | 7th |
| 2010 | 5,60 | 334.053 | 19 | 7th | |
| 2009 | EU | 5,66 | 179.182 | 1 | 6th |
| 2006 | 5,85 | 324.722 | 22 | 6th | |
| 2004 | EU | 12,79 | 321.344 | 2 | 4th |
| 2002 | 8,39 | 444.854 | 30 | 5th |
| Leaders | |
| 1917 | Carl Winberg & Zeth Höglund |
| 1918 | Ernst Åström & Karl Kilbom |
| 1919 – 1924 | Zeth Höglund |
| 1921 – 1923 | Karl Kilbom |
| 1924 – 1929 | Nils Flyg |
| 1929 – 1951 | Sven Linderot |
| 1951 – 1964 | Hilding Hagberg |
| 1964 – 1975 | C.- H. Hermansson |
| 1975 – 1993 | Lars Werner |
| 1993 – 2003 | Gudrun Schyman |
| 2003 – 2004 | Ulla Hoffmann (acting) |
| 2004 – 2012 | Lars Ohly |
| 2012 – 2020 | Jonas Sjöstedt |
| 2020 – | Nooshi Dadgostar |
