Politicians connected to Social Democracy through party membership in the PoliticaHub knowledge graph.
Leader of the Australian Greens since 2020 and a prominent progressive voice in national politics.
German Green politician who has served as foreign minister since 2021 and co-led the party before entering government.
Prime Minister of Australia since 2022. Labor leader re-elected in the 2025 federal election.
President of South Africa since 2018. ANC leader, businessman, and anti-apartheid activist.
Leader of the Labour Party from 2010 to 2015 and cabinet minister in the Starmer government. Contested the 2015 general election against David Cameron.
Leader of Italy's Democratic Party since 2023. Progressive politician and former vice president of Emilia-Romagna.
Leader of the GroenLinks-PvdA alliance and former European Commission executive vice president.
Prime Minister of the United Kingdom from 2007 to 2010. Long-serving Chancellor of the Exchequer and senior Labour strategist.
Leader of the New Democratic Party since 2017. Social democratic opposition politician.
Prime Minister of the United Kingdom from 1976 to 1979. Labour leader who governed during the Winter of Discontent and lost the 1979 election to Thatcher.
Leader of the UK Labour Party from 2015 to 2020 and opposition challenger in the 2019 general election.
Prime Minister of the United Kingdom since 2024. Former Director of Public Prosecutions and Labour leader.
Speaker of the House of Commons since 2019. Former Labour MP and Deputy Speaker who now serves as the Commons' impartial presiding officer.
Leader of the Swedish Social Democrats. Prime Minister of Sweden 2021-2022 and former Minister of Finance.
Leader of the Labour Party from 1980 to 1983. Led Labour through its 1983 election defeat on a left-wing manifesto later described as the longest suicide note in history.
Leader of the Labour Party from 1983 to 1992. Modernized Labour's internal structures and policy positions but lost two general elections to the Conservatives.
Chancellor of Germany 2021-2025. SPD member and former Minister of Finance.
Prime Minister of Spain since 2018. Leader of the Spanish Socialist Workers' Party.
Prime Minister of Sweden from 2014 to 2021. Social Democrat trade unionist who led minority coalition governments.
Prime Minister of the United Kingdom from 1997 to 2007. Transformed Labour into New Labour and won three consecutive general elections. His legacy is dominated by domestic reform and the Iraq War.