| Abbr. | Logo | Ideology | Founded | Founder | Leader | Website | European Parliament Group |
| PL |  | Social democracy, Democratic socialism | 15.03.1921 | William Savona | Robert Abela | http://partitlaburista.org |  |
Elections
| Date | Elections | % | Votes | Seats | |
| 2022 | 55,11 | 162.707 | 38 | 1st | |
| 2019 | EU | 54,29 | 141.267 | 4 | 1st |
| 2017 | 55,04 | 170.976 | 37 | 1st | |
| 2014 | EU | 53,39 | 134.462 | 3 | 1st |
| 2013 | 54,83 | 167.533 | 39 | 1st | |
| 2009 | EU | 54,77 | 135.917 | 3 | 1st |
| 2008 | 48,79 | 141.888 | 34 | 2nd | |
| 2004 | EU | 48,42 | 118.983 | 2 | 1st |
| 2003 | 47,51 | 134.092 | 30 | 2nd |
| Leaders | |
| 30.08.1925 – 16.08.1927 | William Savona |
| 16.08.1927 – 29.11.1928 | Michael Dundon |
| 29.11.1928 – 12.10.1949 | Paul Boffa |
| 16.10.1949 – 22.12.1984 | Dom Mintoff |
| 22.12.1984 – 26.03.1992 | Karmenu Mifsud Bonnici |
| 26.03.1992 – 10.03.2008 | Alfred Sant |
| 10.03.2008 – 06.06.2008 | Charles Mangion |
| 06.06.2008 – 12.01.2020 | Joseph Muscat |
| 12.01.2020 – | Robert Abela |
