Independent Social Democratic Party politicians

Wilhelm "Willi" Münzenberg (14 August 1889, Erfurt, Germany – June 1940, Saint-Marcellin, France) was a communist political activist.

August Thalheimer (18 March 1884 – 19 September 1948) was a German Marxist activist and theoretician.

Rosa Luxemburg (also Rozalia Luxenburg; Polish: Róża Luksemburg; 5 March 1871 – 15 January 1919) was a Marxist theorist, philosopher, economist, anti-war activist, and revolutionary socialist of Polish-Jewish descent who became a naturalized German citizen.

Ernst Thälmann (16 April 1886 – 18 August 1944) was the leader of the Communist Party of Germany (KPD) during much of the Weimar Republic.

Karl Artelt (31 December 1890 - 28 September 1981) was a German revolutionary and a leader of the sailors' revolt in Kiel.

Max Hoelz (14 October 1889 - 15 September 1933) was a German Communist, most known for his role as a 'Communist Bandit' in the Vogtland region.

Ernst Rudolf Johannes Reuter (29 July 1889 – 29 September 1953) was the German mayor of West Berlin from 1948 to 1953, during the time of the Cold War.

Arthur Rosenberg (1889–1943) was a German Marxist historian and writer.

Wilhelm Koenen (April 7, 1886 – October 19, 1963) was a communist and an East German politician.

Lev "Leo" Jogiches (Russian: Лев "Лео" Йогихес; "yū-gē'-khěs"; 1867 – 1919), also commonly known by the party name Jan Tyszka (Russian: Ян Тышка), was a Marxist revolutionary active in Lithuania, Poland, and Germany.

Friedrich (Fritz) Carl Heckert (born 28 March 1884 in Chemnitz, died 7 April 1936 in Moscow) was a German politician, co-founder of the Spartacus League and the Communist Party of Germany and a leading member of the Communist International (Comintern).

Hermann Esser (29 July 1900 – 7 February 1981) was a very early member of the Nazi Party (NSDAP).

Paul Cassirer (21 February 1871, in Görlitz – 7 January 1926, in Berlin) was a German art dealer and editor who played a significant role in the promotion of the work of artists of the Berlin Secession and of French Impressionists and Post-Impressionists, in particular that of Vincent van Gogh and Paul Cézanne.

Ernst Torgler (25 April 1893 – 19 January 1963) was the last chairman of the Communist Party of Germany faction in the German Reichstag.

Wilhelm Florin (born Cologne 16 March 1894:died Moscow 5 July 1944) was a German Communist Party (KPD) politician and a campaigner in opposition to National Socialism.

Martha Arendsee (29 March 1885 - 22 May 1953) was a German politician (KPD) and women's rights activist.

Luise Kautsky (August 11, 1864 – December 8, 1944) was a German politician and member of the USPD.

Paul Levi (March 11, 1883 – February 9, 1930) was a German Communist and Social Democratic political leader.

Theodor Liebknecht (19 April 1870 - 6 January 1948) was a German socialist politician.

Rudolf Breitscheid, (November 2, 1874 – August 28, 1944) was a leading member of the Social Democratic Party and a delegate to the Reichstag during the era of the Weimar Republic in Germany.

Siegfried Aufhäuser (born 1 January 1884 in Augsburg — died 6 December 1969 in Berlin) was a German politician and union leader, and from 1921 to 1933, chairman of the largely white-collar AfA-Bund.

Eugen Leviné (Russian: Евгений Левине) (born 10 May 1883 – 5 July 1919) was a communist revolutionary and leader of the short-lived Bavarian Council Republic.

Gustav Sobottka (July 12, 1886 – March 6, 1953) was a German politician in East Germany.

Franz Dahlem (14 January 1892 - 17 December 1981) was a leading official of the German Communist Party and, after 1945, of East Germany's ruling Socialist Unity Party (Sozialistische Einheitspartei Deutschlands / SED).

Franz Erdmann Mehring (27 February 1846 – 28 January 1919), was a German publicist, politician and historian.

Karl Korsch (August 15, 1886 – October 21, 1961) was a German Marxist theoretician.

Agnes was the daughter of a coal miner from Bochum.

Walter Weidauer (28 July 1899 – 13 March 1986) was a German politician.

Initially a member of the Centre Party, Laufenberg joined the Social Democratic Party of Germany (SPD) in the early 1900s.

Rudolf Leonhard (27 October 1889, in Lissa, German Empire (today Leszno, Poland) – 19 December 1953, in East Berlin) was a German author and communist activist.

Rosa Aschenbrenner (born Rosa Lierl: 27 April 1885 - 9 February 1967) was a German politician (KPD / SPD).

Albert Buchmann (October 28, 1894 in Pirmasens - May 17, 1975 in Berlin) was a German politician.

Karl Retzlaw (10 February 1896 – 20 June 1979) was a German politician, representative of the Social Democratic Party, Independent Social Democratic Party of Germany and Communist Party of Germany.

Karl Aderhold (30 June 1884, Stolberg, Province of Saxony – 20 June 1921 Hanover) was a German politician.

Emma Döll (née Hohmann, 3 March 1873 - 1930) was a German politician (SPD/USPD/KPD).

Cäcilie "Cilly" Schäfer (born Cäcilie Tannenberg: 25 January 1898 - 18 January 1981) was a German politician(KPD).

Hermann Schubert (26 January 1886 - 22 March 1938) was a German activist and politician (KPD).

Olga Körner (born Olga Schubert: 3 June 1887 - 22 December 1969) was a German political activist and a co-founder of the proletarian women's movement in Dresden.

Hugo Gräf (born Rehestädt 10 October 1892: died Gotha 23 October 1958) was a German Communist politician.

Mathilde Wurm (30 September 1874 – 1 April 1935) was a German politician, social worker and journalist.

Karl Wilhelm Stolle (19 December 1842 - 11 March 1918) was a German SPD politician.

Katharine "Ketty" Guttmann (born Katherina Ekey: 29 April 1883 - 25 September 1967) was a German Communist politician and campaigner for prostitutes' rights.

Maria Backenecker (born Maria Scharnetzki; 20 March 1893 - 24 December 1931) was a German politician (KPD) and feminist activist.

Hugo Wenzel (23 August 1891 – 24 January 1940) was a German politician (SPD, USPD, KPD).

Alfred Faust (15 December 1883 – 14 June 1961) was a German advertising executive, journalist, editor, and left-wing politician.

Alfred Henke (1 March 1868 – 24 February 1946) was a German politician, serving as a member of a number of national and regional parliaments during the early 20th century.

Paul Franken (27 June 1894 – Autumn 1944) was a German Socialist politician.

Hedwig Krüger (born Hedwig Hennig: 1 April 1882 - 16 February 1938) was a German Communist politician.

Heinrich Böschen (born 27 October 1887: presumed to have died following disappearance 31 December 1945) was a German Communist politician and trades unionist.

Marie Martha Schlag (née Press; 26 February 1875 - 14 June 1956) was a German politician (SPD, KPD, SED).

Kurt Rosenfeld (1 February 1877 – 25 September 1943) was a German lawyer and politician (SPD).

Hans Jendretzky (July 20, 1897 in Berlin – July 2, 1992 in Berlin) was a German communist politician.

Ernst Däumig (1868–1922) was a German politician and was the co-chairman of both the Independent Social Democratic Party of Germany (USPD) and Communist Party of Germany (KPD).

Agnes Plum (born Agnes Jansen: 9 April 1869 - 10 August 1951) was a German politician.

Ernst Goldenbaum (15 December 1898, Parchim, Mecklenburg-Schwerin – 13 March 1990) was an East German politician.

Bertha Braunthal (1 February 1887 - 1968) was a communist politician in Germany from the party's creation in 1920 till her emigration to London in 1933.

Emil Barth (Heidelberg, 23 April 1879 – Berlin, 17 July 1941) was a German Social Democratic metal worker who became a key figure in the German Revolution of 1918.

Emil Eichhorn (9 October 1863 - 26 July 1925) was a USPD politician and Chief of the Berlin Police during the 1918-1919 German Revolution.

Lothar Popp (7 February 1887 – 27 April 1980) was a German revolutionary and a leader of the sailors' revolt in Kiel.

Dr. Hermann Louis Brill (February 9, 1895 – June 22, 1959) was a German doctor of law and a politician (SPD).

Ernst Schwarz (born 28 January 1886 in Landsberg an der Warthe, Brandenburg; died May 29, 1958 in Twickenham), was a Communist politician.

Kurt Löwenstein (18 May 1885 in Bleckede – 8 May 1939 in Paris) was a German USPD/SPD politician, Socialist reform pedagogue and one of the founders of Socialist Youth of Germany - Falcons.

Bernhard Reichenbach (1888 in Berlin – 1975 in London) was a member of the Executive Committee of the Communist International.

Anna Reitler (born Anna Schnitzler: 3 June 1894 - 23 June 1948) was a German politician (KPD).

Anton Grylewicz (8 January 1885 - 2 August 1971) was a German communist politician.

Antonie Langendorf (born Anette Glanzmann: 3 January 1894 - 23 June 1969) was a German political activist and politician (SPD, USPD, KPD).