Authors

[[A. K. Chebotaryova|]]

Russia

[[A. M. Heller|]]

Communism

[[A. P. Kudryavtsev|]]

[[A. P. Rozengolts|]]

(1 November 1889–15 March 1938)

[[A. Y. Isayenko|]]

[[ADAV|]]

(23 May 1863–May 1875)

Germany, Party, Ferdinand Lassalle, Social democracy

[[Aaron Soltz|]]

(10 March 1872–30 April 1945)

Communism, Russia, Bolshevism, RSDLP, Lithuania

[[Abraham Johannes Muste|]]

(8 January 1885–11 February 1967)

Socialism, United States, Trotskyism, Netherlands, Reformation, Trade unionists

[[Abraham Leon|]]

(1918–7 October 1944)

Communism, Poland, Belgium, Trotskyism

[[Abraham Lincoln|]]

(12 February 1809–15 April 1865)

Democracy, United States, Slavery, President

[[Abram Anikst|]]

(1887–19 March 1938)

Communism, Anarchism, Russia, Bolshevism

[[Abram Belenky|]]

(1882–16 October 1941)

Communism, Russia, Bolshevism, RSDLP, Belarus

[[Abram Goltsman|]]

(24 August 1894–5 September 1933)

[[Abram Gots|]]

(1882–4 August 1940)

Socialism, Russia, Socialist-Revolutionaries

[[Achille Loria|]]

(2 March 1857–6 November 1943)

Economics, Italy, Sociology

[[Adam Smith|]]

(16 June 1723–17 July 1790)

United Kingdom, Economics, Liberalism

[[Adelbert von Bornstedt|]]

Germany, Communism

[[Adelheid Popp|]]

(11 February 1869–7 March 1939)

Socialism, Austria, SDAPÖ

[[Adhémar Hennaut|]]

(4 March 1899–26 March 1977)

Communism, Belgium, Trotskyism, Trade unionists, Communist Party of Belgium

[[Adhémar Schwitzguébel|]]

(15 August 1844–23 July 1895)

Anarchism, Socialism, Switzerland

[[Adolf Cluss|]]

(14 July 1825–24 July 1905)

[[Adolf Hepner|]]

(24 November 1846–26 April 1923)

Germany, Socialism, United States, SPD

[[Adolf Hoffmann|]]

(23 March 1858–1 December 1930)

Germany, Socialism, SPD, KPD, USPD

[[Adolf Warski|]]

(20 April 1868–21 August 1937)

Communism, Poland, SDKPiL

[[Adolph Joffe|]]

(10 October 1883–16 November 1927)

Communism, Russia, Bolshevism, RSDLP, Mezhraiontsy

[[Adolph von Elm|]]

Germany, Social democracy, SPD, Trade unionists

[[Adolphe Hubert|]]

(14 December 1907–)

[[Adolphe Smith|]]

(1 January 1846–1 January 1924)

United Kingdom, Socialism, France, Possibilism

[[Adolphe Thiers|]]

(15 April 1797–3 September 1877)

France

[[Albert Bourderon|]]

(26 November 1858–2 April 1930)

Socialism, France, Trade unionists

[[Albert Delon|]]

Socialism, France, Physician

[[Albert Einstein|]]

(14 March 1879–18 April 1955)

Germany, Science, Natural science

[[Albert Glotzer|]]

(7 November 1908–18 February 1999)

[[Albert Goldman (politician)|]]

(1897–1960)

[[Albert Südekum|]]

(25 January 1871–18 February 1944)

[[Albert Thomas|]]

(16 June 1878–7 May 1932)

[[Albert Treint|]]

(13 February 1889–25 October 1971)

Communism, France, Trotskyism, French Communist Party

[[Albert Weisbord|]]

(9 December 1900–April 1977)

[[Alberto Vega|]]

Communism, Socialism, Spain, POUM

[[Aleksandr Martynov|]]

(12 December 1865–5 June 1935)

Communism, Russia, Bolshevism, RSDLP, Menshevism

[[Aleksandr Petrovich Smirnov|]]

(1877–9 February 1938)

[[Aleksandr Voronsky|]]

(8 September 1884–13 July 1937)

[[Aleksandra Sokolovskaya|]]

(1872–29 April 1938)

[[Aleksei Badayev|]]

(16 November 1883–3 November 1951)

[[Aleksei Kiselyov|]]

(1879–30 October 1937)

[[Aleksei Yuriev|]]

(9 July 1843–25 November 1918)

Socialism, Russia

[[Alexander Abramovich|]]

(27 March 1888–21 January 1972)

[[Alexander Beloborodov|]]

(26 October 1891–10 February 1938)

[[Alexander Berkman|]]

(21 November 1870–28 June 1936)

Anarchism, Russia, Lithuania

[[Alexander Bogdanov|]]

(22 July 1873–7 April 1928)

Russia, Bolshevism

[[Alexander Goikhbarg|]]

(1883–1962)

Communism, Russia, Bolshevism, RSDLP, Menshevism

[[Alexander Herzen|]]

(6 April 1812–21 January 1870)

Philosophy, Russia

[[Alexander Kerensky|]]

(4 May 1881–11 June 1970)

Socialism, Russia, Trudoviks, Socialist-Revolutionaries

[[Alexander Korostelev|]]

(September 1887–14 April 1938)

[[Alexander Krasnoshchyokov|]]

(10 October 1880–26 November 1937)

Communism, Russia, Bolshevism, RSDLP, Far Eastern Republic

[[Alexander Lozovsky|]]

(23 September 1907–26 February 1981)

Communism, Russia, Bolshevism, Red Army

[[Alexander Metelev|]]

(27 July 1893–26 October 1937)

[[Alexander Minkin|]]

(26 August 1946–)

Russia, Bolshevism

[[Alexander Naglovsky|]]

(11 January 1885–1942)

[[Alexander Paikes|]]

(1873–1958)

Communism, Russia, RSDLP, Menshevism

[[Alexander Parvus|]]

(8 September 1867–12 December 1924)

Germany, Second International, Social democracy, SPD

[[Alexander Potresov|]]

(13 September 1869–11 July 1934)

Socialism, Russia, Social democracy, RSDLP, Menshevism

[[Alexander Schlichter|]]

(20 August 1868–2 December 1940)

Communism, Russia, Ukraine, Bolshevism, RSDLP

[[Alexander Schwab|]]

(5 July 1887–12 November 1943)

Germany, Communism, Councilism, KAPD

[[Alexander Serafimovich|]]

(19 January 1863–19 January 1949)

[[Alexander Serebrovsky|]]

(25 December 1884–10 February 1938)

Communism, Russia, Bolshevism, RSDLP, Petroleum, Engineering

[[Alexander Shliapnikov|]]

(30 August 1885–2 September 1937)

Communism, Russia, Bolshevism, RSDLP, Workers' Opposition, CPSU

[[Alexander Shumsky|]]

(2 December 1890–18 December 1946)

Communism, Russia, Ukraine, Borotbists, CPSU

[[Alexander Sirnis|]]

(6 December 1881–12 November 1918)

[[Alexander Stopani|]]

(9 October 1871–23 October 1932)

[[Alexander Svanidze|]]

(1886–20 August 1941)

Communism, Russia, Bolshevism, RSDLP, Georgia

[[Alexander Troyanovsky|]]

(1 January 1882–23 June 1955)

Communism, Russia, RSDLP

[[Alexander Tsiurupa|]]

(19 September 1870–8 May 1928)

[[Alexander Yemshanov|]]

(25 August 1891–26 November 1937)

Communism, Russia, Economics

[[Alexandra Kollontai|]]

(31 March 1872–9 March 1952)

Communism, Marxism, Russia, Feminism, Bolshevism

[[Alexandra Kollontai September|]]

[[Alexandra Mikhailovna Kalmykova|]]

(26 December 1849–1 April 1926)

Communism, Russia, Feminism, Bolshevism, RSDLP

[[Alexandre Millerand|]]

(10 February 1859–6 April 1943)

Socialism, France, Ministerialism

[[Alexandre-Marie Bracke-Desrousseaux|]]

(29 September 1861–25 December 1955)

[[Alexei Lyubimov|]]

(1879–1919)

Socialism, Russia, Bolshevism, RSDLP

[[Alexei Rykov|]]

(25 February 1881–15 March 1938)

[[Alexei Yeramasov|]]

(–1927)

Socialism, Russia, Bolshevism, RSDLP

[[Alexey Kaledin|]]

(24 October 1861–11 February 1918)

Russia, Counter-Revolution

[[Alexey Mefodievich Amosov|]]

(1896–25 November 1937)

[[Alexey Peshekhonov|]]

(2 February 1867–3 April 1933)

Russia, Economics, Narodniks, Kadet

[[Alexey Svidersky|]]

(20 March 1878–10 May 1933)

[[Alexis Bardin|]]

Socialism, France, Trotskyism, SFIO, Trade unionists

[[Alfonso Leonetti|]]

(13 September 1895–26 December 1984)

Communism, Italy, Trotskyism, Italian Communist Party, Italian Socialist Party

[[Alfred Mendel|]]

Germany, United States, Publishing

[[Alfred Rosmer|]]

(1877–1964)

Communism, France, Trotskyism, French Communist Party, CGT (France), Revolutionary syndicalism

[[Alfred Talandier|]]

United States, Trade unionism

[[Alois Neurath|]]

(29 August 1886–25 April 1955)

Germany, Communism

[[Alphonse Merrheim|]]

(7 May 1871–23 October 1923)

France, Anarcho-syndicalism, Trade unionists

[[Amadeo Bordiga|]]

(13 June 1889–23 July 1970)

Communism, Italy, Italian Communist Party, Italian Socialist Party

[[Amalie Daniels|]]

Germany, Communism

[[Amand Goegg|]]

(7 April 1820–21 July 1897)

Germany, Socialism, First International, SPD

[[American Federation of Labor|]]

(8 December 1886–4 December 1955)

[[Amilcar Cabral|]]

(12 September 1924–20 January 1973)

Marxism, Anti-imperialism, Cape Verde, Guinea-Bissau

[[Amilcare Cipriani|]]

(18 October 1843–30 April 1918)

Anarchism, Socialism, Italy

[[Amsterdam International|]]

(July 1919–1945)

International organization, Amsterdam, Trade unionism

[[Anatoly Lunacharsky|]]

(23 November 1875–26 December 1933)

Communism, Russia, Education, Bolshevism, RSDLP

[[Andreas Gottschalk|]]

(28 February 1815–8 September 1849)

Germany, Communist League (Marx-Engels)

[[Andrei Bubnov|]]

(23 March 1883–1 August 1938)

[[Andrei Kolegayev|]]

(22 March 1887–22 March 1937)

Communism, Russia, Bolshevism, Socialist-Revolutionaries

[[Andrei Lezhava|]]

(19 February 1870–8 October 1937)

[[Andreu Nin|]]

(4 February 1892–20 June 1937)

Communism, Trotskyism, Spain, POUM, Catalonia

[[Andrey Potyaev|]]

(29 November 1888–23 May 1937)

[[Andrey Prokofiev|]]

(1886–19 October 1949)

Communism, Russia, Bolshevism, RSDLP, Engineering

[[Andrey Vyshinsky|]]

(10 December 1883–22 November 1954)

Communism, Russia, RSDLP, Menshevism

[[André Breton|]]

(19 February 1896–28 September 1966)

[[André Ferrat|]]

(26 July 1902–24 January 1988)

Communism, Socialism, France, SFIO, French Communist Party

[[André Malraux|]]

(3 November 1901–23 November 1976)

France, Literature

[[André Morizet|]]

(23 January 1876–30 March 1942)

[[Angel Rincón|]]

Maoism, Dominican Republic

[[Angela Davis|]]

(26 January 1944–)

Communism, Feminism, United States, CPUSA

[[Angelica Balabanoff|]]

(4 August 1878–25 November 1965)

Communism, Socialism, Russia, Italy, Ukraine, Third International, Second International

[[Angelo Tasca|]]

(19 November 1892–3 March 1960)

Communism, Socialism, Italy, SFIO, Italian Communist Party, Italian Socialist Party

[[Anna Götze|]]

Germany, Anarchism, SPD, Spartacus League

[[Anna Louise Strong|]]

(24 November 1885–29 March 1970)

Communism, United States

[[Anna Ulyanova|]]

(26 August 1864–19 October 1935)

Lenin, Russia

[[Annie Besant|]]

(1 October 1847–20 September 1933)

United Kingdom, Secularism

[[Anselmo Lorenzo|]]

(21 April 1841–30 November 1914)

Anarchism, Socialism, Spain, First International

[[Ante Ciliga|]]

(20 February 1898–21 October 1992)

Communism, Nationalism, Croatia, Yugoslavia

[[Antoine Ker|]]

(23 April 1886–21 July 1923)

Communism, France, Freemasonry, SFIO, French Communist Party

[[Antoinette Konikow|]]

[[Antoinette Philips|]]

[[Anton Grylewicz|]]

(8 January 1885–2 August 1971)

Germany, Communism, SPD, KPD, USPD

[[Anton Pannekoek|]]

(2 January 1873–28 April 1960)

Marxism, Third International, Second International, Social democracy, Netherlands, Councilism, SDAP (Netherlands)

[[Antonio Gramsci|]]

(22 January 1891–27 April 1937)

Communism, Marxism, Italy, Italian Communist Party

[[Antonio Guzmán Fernández|]]

(12 February 1911–4 July 1982)

[[Antonio Labriola|]]

(2 July 1843–12 February 1904)

Socialism, Marxism, Italy, Italian Socialist Party

[[Antonín Němec|]]

(15 January 1858–25 May 1926)

Socialism, Czechia

[[Apollinariya Yakubova|]]

(7 October 1870–1917)

Marxism, Russia, Economicism, RSDLP, Menshevism

[[Apollon Karelin|]]

(23 January 1863–20 March 1926)

Anarchism, Russia

[[Arben Davitian|]]

(5 November 1895–21 February 1944)

Communism, Trotskyism, Bolshevism, Armenia

[[Aristide Barré|]]

[[Aristide Fanton|]]

[[Arkadi Kremer|]]

(1865–1935)

Socialism, Russia, Jewish Bund

[[Arkady Alsky|]]

(1892–1939)

Communism, Russia, Trotskyism, Bolshevism

[[Arkady Rosengolts|]]

(4 November 1889–15 March 1938)

Socialism, United States, Socialist Labor Party (USA)

[[Armand Hammer|]]

(21 May 1898–10 December 1990)

[[Arne Swabeck|]]

(1890–1986)

Communism, United States, Trotskyism, CPUSA

[[Arnold Ruge|]]

(13 September 1802–30 December 1880)

Germany, Young Hegelians

[[Aron Sheinman|]]

(24 December 1885–22 May 1944)

Communism, Poland, Russia, Bolshevism, RSDLP

[[Arshak Yakubov|]]

(1882–1923)

Communism, Russia, RSDLP

[[Artemic Khalatov|]]

(27 April 1894–26 September 1937)

Communism, Russia, RSDLP, Armenia, Azerbaijan

[[Artemy Lyubovich|]]

(29 October 1880–28 June 1938)

[[Arthur Balfour|]]

(25 July 1848–19 March 1930)

United Kingdom

[[Arthur Crispien|]]

(4 November 1875–29 November 1946)

[[Arthur Goldstein|]]

(18 March 1887–1 January 1943)

Germany, Communism, Councilism, KAPD

[[Arthur Henderson|]]

(13 September 1863–20 October 1935)

United Kingdom, Socialism, Scotland, Trade unionists, Labour Party (UK)

[[Arthur Rosenberg|]]

(19 December 1889–7 February 1943)

Germany, Communism, Socialism

[[Arthur Schmid senior|]]

(30 April 1889–4 November 1958)

Switzerland, Economics, Social democracy

[[August Bebel|]]

(22 February 1840–13 August 1913)

Germany, Socialism, Marxism, Second International, Social democracy

[[August Enders|]]

Sweden, Social Democrats (Sweden)

[[August Palm|]]

(5 February 1849–14 March 1922)

[[August Radimsky|]]

Socialism, Czechia

[[August Siegel|]]

Germany, United Kingdom, Socialism, Miners

[[August Thalheimer|]]

(18 March 1884–19 September 1948)

Germany, Communism, KPD, Spartacus League, USPD

[[August Vogt|]]

[[August Willich|]]

(19 November 1810–22 January 1878)

[[Auguste Blanqui|]]

(8 February 1805–1 January 1881)

Communism, Socialism, France, Blanquism

[[Auguste Comte|]]

(19 January 1798–5 September 1857)

Philosophy, France, Sociology, Positivism

[[Auguste Lecœur|]]

[[Auguste Mougeot|]]

(4 October 1878–20 July 1961)

Communism, Anarchism, France, Trotskyism, Trade unionists

[[Auguste Serraillier|]]

[[Auguste Vermorel|]]

[[Augusto Sandino|]]

(18 May 1895–21 February 1934)

Anti-imperialism, Nationalism, Nicaragua

[[Australian Communist Party|]]

Communism, Party, Australia

[[Australian Labour Party|]]

(1891–)

Socialism, Party, Australia

[[Avel Yenukidze|]]

(19 May 1877–30 October 1937)

Communism, Russia, Bolshevism, RSDLP, Georgia

[[Avetis Sultan-Zade|]]

(1 January 1888–16 July 1938)

Communism, Iran, Bolshevism, Armenia

[[Avrom Merezhin|]]

(1880–1937)

Communism, Russia, Jewish Bund, Yevsektsiya

[[B. G. Zaks|]]

[[B. I. Goldberg|]]

[[B. Lindheimer|]]

[[B. S. Weissbrot|]]

Communism

[[B.J. Field|]]

(1903–)

United Kingdom, Socialism, Social Democratic Federation, Socialist League (1884)

[[BRSDP (Bulgaria)|]]

Socialism, Party, Second International, Social democracy, Bulgaria

[[Beatrice Potter Webb|]]

(22 January 1858–30 April 1943)

United Kingdom, Socialism, Fabians, Independent Labour Party, Labour Party (UK)

[[Belfort Bax|]]

(23 July 1854–26 November 1926)

[[Belgian Labour Party|]]

(6 April 1885–28 June 1940)

Socialism, Belgium, Party, Second International

[[Belgian Socialist Party|]]

(1945–1978)

Socialism, Belgium, Party, Second International

[[Benedetto Croce|]]

(25 February 1866–20 November 1952)

Italy

[[Benito Mussolini|]]

(29 July 1883–28 April 1945)

Fascism, Italy, Italian Socialist Party

[[Benjamin Disraeli|]]

(21 December 1804–19 April 1881)

United Kingdom, Conservative Party (UK)

[[Benjamin Le Moussu|]]

[[Benjamin Lucraft|]]

(28 November 1809–25 September 1897)

United Kingdom, Socialism, Chartism, First International

[[Benjamin Stolberg|]]

(1891–1951)

Socialism, United States

[[Benno Karpeles|]]

Socialism, Austria

[[Benoit Malon|]]

(23 June 1841–13 September 1893)

[[Benyamin Kayurov|]]

(1876–1936)

[[Bernard Wolfe|]]

(28 August 1915–27 October 1985)

Communism, United States, Trotskyism, Science fiction

[[Bernhard Kraus|]]

Austria, Physician

[[Bertalan Szemere|]]

(27 August 1812–18 January 1869)

Liberalism, Nationalism, Hungary

[[Bertha Augusti|]]

Germany, Literature

[[Bertram Wolfe|]]

(19 January 1896–21 February 1977)

Communism, United States

[[Bertrand Russell|]]

(18 May 1872–2 February 1970)

United Kingdom, Philosophy, Science

[[Bhupendranath Datta|]]

(4 September 1880–25 December 1961)

Anti-imperialism, Democracy, India

[[Bill Haywood|]]

(4 February 1869–18 May 1928)

Socialism, United States, Socialist Party of America, IWW

[[Bohumír Šmeral|]]

(25 October 1880–8 May 1941)

Communism, Czechia

[[Bolesław Jędrzejowski|]]

Socialism, Poland, Polish Socialist Party

[[Boris Frumkin|]]

Socialism, Russia, Jewish Bund, Belarus

[[Boris Krichevsky|]]

Socialism, Switzerland, Russia, Economicism, RSDLP

[[Boris Nikolaevich Knipovich|]]

(1880–1924)

Russia, Economics, Statistics, RSDLP

[[Boris Reinstein|]]

(1886–1947)

Communism, Russia, United States, Bolshevism

[[Boris Souvarine|]]

(1895–1 November 1984)

[[Boris Stomonyakov|]]

(15 June 1882–1940)

Communism, Russia, Bulgaria, Bolshevism, RSDLP

[[Boris Viaznikovtsev|]]

Communism, Russia, Trotskyism

[[Boris Volin|]]

(13 June 1886–15 February 1957)

[[British Communist Party|]]

(31 July 1920–23 November 1991)

Communism, Party, Third International

[[British Socialist Party|]]

(1911–1920)

United Kingdom, Socialism, Party

[[Bruno Bauer|]]

(6 September 1809–13 April 1882)

Germany, Philosophy, Young Hegelians, Hegelianism

[[Bruno Rizzi|]]

(20 March 1901–13 January 1977)

Communism, Italy

[[Bruno Schoenlank|]]

International organization, Fourth International

[[Buenaventura Durruti|]]

(14 July 1896–20 November 1936)

Anarchism, Spain, Anarcho-syndicalism, CNT (Spain)

[[Béla Kun|]]

(20 February 1886–29 August 1938)

Communism, Hungary

[[C.L.R. James|]]

(4 January 1901–31 May 1989)

United Kingdom, United States, Trotskyism, Trinidad and Tobago

[[CGT (France)|]]

(September 1895–)

France, Trade unionism

[[CNT (Spain)|]]

(1910–)

Spain, Anarcho-syndicalism, Trade unionism

[[CPSU|]]

(May 1917–6 November 1991)

Communism, Russia, Party, Bolshevism

[[CPUSA|]]

(1 September 1919–)

Communism, Party, Third International

[[CWI-FI|]]

[[Camille Huysmans|]]

(26 May 1871–25 February 1968)

Socialism, Belgium, Second International

[[Carl Eberle|]]

Germany, Socialism, Trade unionists

[[Carl Hirsch|]]

Germany, Socialism, ADAV, SDAP (Germany)

[[Carl Legien|]]

(1 December 1861–26 December 1920)

Germany, Social democracy, SPD, Trade unionists

[[Carl Pearson|]]

(27 March 1857–27 April 1936)

United Kingdom, Socialism, Mathematics, Statistics, Biology

[[Carl Schorlemmer|]]

(30 September 1834–27 June 1892)

Germany, Socialism, Chemistry, SPD

[[Carl Siebel|]]

(13 January 1836–9 May 1868)

[[Carl Skoglund|]]

(10 April 1884–11 December 1960)

Communism, United States, Trotskyism, Sweden, Social Democrats (Sweden)

[[Carl Speyer|]]

(1 January 1845–)

Germany, United Kingdom, Socialism

[[Carl Wallau|]]

(8 August 1823–7 July 1877)

[[Carleton Beals|]]

(13 November 1893–4 April 1979)

Communism, United States

[[Carlo Cafiero|]]

(1 September 1846–17 July 1892)

Anarchism, Socialism, Italy

[[Carlo Dell'Avalle|]]

(24 April 1861–10 December 1917)

Socialism, Italy, Italian Socialist Party

[[Carlo Terzaghi|]]

Socialism, Italy, Espionage, First International

[[Carlo Tresca|]]

(9 March 1879–11 January 1943)

Anarchism, Italy, United States, IWW, Trade unionists

[[Carlos Hudson|]]

[[Carmelo Palladino|]]

Anarchism, Socialism, Italy, First International

[[Cass Canfield|]]

(26 April 1897–27 March 1986)

United States, Publishing

[[Cecil Frank Glass|]]

(24 March 1901–21 March 1988)

Communism, United Kingdom, United States, China, Trotskyism

[[Cesare Bert|]]

Socialism, Italy, First International

[[Charles Bonnier|]]

Socialism, France, Parti ouvrier français

[[Charles Bradlaugh|]]

(26 September 1833–30 January 1891)

United Kingdom, Secularism

[[Charles Caron|]]

(3 January 1768–30 January 1853)

Socialism, United States, First International

[[Charles Cornell|]]

[[Charles Curtiss|]]

(4 July 1908–20 December 1993)

[[Charles Darwin|]]

(12 February 1809–19 April 1882)

United Kingdom, Evolution, Biology, Natural science

[[Charles Dumas|]]

(12 February 1937–5 January 2004)

United Kingdom, Socialism, Social Democratic Federation

[[Charles Fourier|]]

(7 April 1772–10 October 1837)

Socialism, Utopian socialism, France

[[Charles L. Fitzgerald|]]

(1836–1930)

[[Charles Longuet|]]

(14 February 1839–5 August 1903)

[[Charles Napier|]]

(6 March 1786–3 November 1860)

[[Charles Plisnier|]]

(13 December 1896–17 July 1952)

Communism, Belgium, Communist Party of Belgium

[[Charles Proteus Steinmetz|]]

(9 April 1865–26 October 1923)

Germany, Socialism, Mathematics, Engineering

[[Charles Rappoport|]]

(14 June 1865–17 November 1941)

Communism, France, Russia, SFIO, Lithuania, French Communist Party

[[Charles Rumford Walker|]]

(31 July 1894–26 November 1974)

History, United States

[[Charles Tillon|]]

(3 July 1897–13 January 1993)

[[Charles Torielli|]]

(7 April 1909–11 November 1991)

Communism, France, Trotskyism, French Communist Party

[[Charles Waldstein|]]

(30 March 1856–21 March 1927)

United States

[[Chen Duxiu|]]

(8 October 1879–27 May 1942)

Communism, China, Trotskyism, Chinese Communist Party

[[Chen Wangdao|]]

(1891–1977)

Communism, Feminism, China

[[Chiang Kai-shek|]]

(31 October 1887–5 April 1975)

[[Chinese Communist Party|]]

(1 July 1921–)

Communism, Party, China, Third International

[[Christian Rakovsky|]]

(13 August 1873–11 September 1941)

Socialism, Balkans, Romania, Bulgaria, Bolshevism, PSD (Romania), BRSDP (Bulgaria)

[[Christine Delphy|]]

(9 December 1941–)

France, Feminism

[[Christophe Thivrier|]]

(16 May 1841–8 August 1895)

Socialism, France, Municipality, Workers, Election

[[Christy Moustakis|]]

United States, Trotskyism

[[Clara Zetkin|]]

(5 July 1857–20 June 1933)

Germany, Communism, Socialism, Marxism, Feminism, Third International, Second International, Social democracy, Spartacus League

[[Claude McKay|]]

(15 September 1890–22 May 1948)

Communism, CPUSA, Jamaica

[[Claudia Jones|]]

(15 February 1915–24 December 1964)

Communism, United States, Trinidad and Tobago, CPUSA

[[Collet Dobson Collet|]]

(31 December 1812–28 December 1898)

United Kingdom, Chartism

[[Communist League (Marx-Engels)|]]

(1847–1852)

Germany, Communism, Marxism, Party

[[Communist Party of Austria|]]

(3 November 1918–)

Communism, Austria, Party, Third International

[[Communist Party of Belgium|]]

(3 September 1921–1989)

Communism, Belgium, Party, Third International

[[Conrad Schmidt|]]

(1863–1932)

Germany, Philosophy, Economics

[[Conrad Schramm|]]

(21 August 1822–1 January 1858)

[[Constantin Dobrogeanu-Gherea|]]

(21 May 1855–7 May 1920)

Socialism, Romania, PSDMR

[[Costantino Lazzari|]]

(1 January 1857–29 December 1927)

Communism, Italy, Italian Communist Party, Italian Socialist Party

[[Cunninghame Graham|]]

(24 May 1852–20 March 1936)

United Kingdom, Socialism, Scotland

[[César de Paepe|]]

(12 July 1841–19 December 1890)

Socialism, Belgium, Physician

[[D. I. Yefremov|]]

Communism, Russia, Bolshevism, Red Army

[[D. M. Kotlyarenko|]]

Russia, RSDLP

[[D. P. Oskin|]]

(25 October 1919–25 January 2004)

[[D. T. Petruchuk|]]

[[D. Y. Ivashchenko|]]

[[Dagobert Oppenheim|]]

[[Daniel De Leon|]]

(14 December 1852–11 May 1914)

Socialism, United States, Netherlands, Knights of Labor, IWW, Trade unionists

[[Daniel Guérin|]]

(19 May 1904–14 May 1988)

Communism, Anarchism, France, Trotskyism

[[Daniel Renoult|]]

(18 December 1880–17 July 1958)

Communism, France, SFIO, French Communist Party

[[Dashnak|]]

(1890–)

Nationalism, Social democracy, Armenia

[[David Hume|]]

(7 May 1711–25 August 1776)

United Kingdom, Philosophy, Skepticism, Utilitarianism

[[David Riazanov|]]

(10 March 1870–21 January 1938)

Marxism, Russia, Bolshevism, RSDLP

[[David Ricardo|]]

(18 April 1772–11 September 1823)

United Kingdom, Economics

[[David Urquhart|]]

(1 July 1805–16 May 1877)

United Kingdom, Scotland, Diplomacy

[[David Wijnkoop|]]

(11 March 1876–7 May 1941)

Communism, Netherlands, SDAP (Netherlands)

[[Democritus|]]

(460 BC ^JL–370 BC ^JL)

Philosophy, Ancient history, Materialism, Greece

[[Demyan Bedny|]]

(13 April 1883–25 May 1945)

Communism, Russia, Arts, Bolshevism, RSDLP

[[Deng Enming|]]

(1901–1931)

Communism, Feminism, China

[[Denise Naville|]]

(26 June 1896–20 January 1979)

Communism, France, Trotskyism

[[Diderot|]]

(5 October 1713–31 July 1784)

Philosophy, France, Materialism, The Enlightenment

[[Diego Rivera|]]

(8 December 1886–21 November 1957)

Communism, Trotskyism, Mexico

[[Dimitar Blagoev|]]

(14 June 1856–7 May 1924)

Communism, Bulgaria, Bulgarian Communist Party, BRSDP (Bulgaria)

[[Dmitri Bogolepov|]]

(30 June 1885–8 May 1941)

[[Dmitri Mendeleev|]]

(8 February 1834–2 February 1907)

Russia, Natural science

[[Dmitry Alexandrovich Bulatov|]]

(7 November 1889–28 October 1941)

[[Dmitry Avrov|]]

(6 February 1890–5 August 1922)

[[Dmitry Ilyich Ulyanov|]]

(16 August 1874–16 July 1943)

[[Dmitry Kursky|]]

(10 October 1874–20 December 1932)

[[Dmitry Leshchenko|]]

(25 October 1876–9 November 1937)

[[Dmitry Manuilsky|]]

(3 October 1883–22 February 1959)

Communism, Russia, Ukraine, Bolshevism, RSDLP

[[Dominican Communist Party|]]

Communism, Party, Dominican Republic

[[Dominican Revolutionary Party|]]

Socialism, Party, Dominican Republic

[[Dora Montefiore|]]

(20 December 1851–21 December 1933)

United Kingdom, Socialism, Feminism

[[Dvosya Shklovskaya|]]

[[Dwight Macdonald|]]

(24 March 1906–19 December 1982)

Communism, Socialism, United States, Trotskyism

[[E. L. Gurevich|]]

Russia, RSDLP, Borba, Menshevism

[[E. Y. Levin|]]

(1873–)

Russia, RSDLP, Yuzhny Rabochy, Menshevism

[[Edgar Longuet|]]

(18 August 1879–12 December 1950)

Communism, Socialism, France, SFIO, French Communist Party

[[Edouard Fribourg|]]

Socialism, France, Proudhonism

[[Edouard Vaillant|]]

(26 January 1840–18 December 1915)

[[Eduard Bernstein|]]

(6 January 1850–18 December 1932)

Germany, Socialism, Reformism, Second International, Social democracy

[[Eduard David|]]

(11 June 1863–24 December 1930)

Germany, Socialism, Social democracy, SPD, Revisionism

[[Eduard Essen|]]

(14 January 1879–23 April 1931)

[[Eduard Oscar Schmidt|]]

(21 February 1823–17 January 1886)

[[Eduard von Müller-Tellering|]]

Socialism, Austria, Vienna

[[Edward Aveling|]]

(29 November 1849–2 August 1898)

United Kingdom, Marxism

[[Edward Carpenter|]]

(29 August 1844–28 June 1929)

United Kingdom, Socialism, Fabians, Independent Labour Party, Socialist League (1884)

[[Edward R. Pease|]]

(23 December 1857–5 January 1955)

United Kingdom, Socialism, Fabians

[[Edward Sard|]]

(1913–1999)

Socialism, United States, Trotskyism

[[Edward Spencer Beesly|]]

(23 January 1831–7 March 1915)

United Kingdom, Positivism, Trade unionists

[[Ekaterina Mikhailovna Alexandrova|]]

(1864–1943)

[[Eleanor Marx|]]

(16 January 1855–31 March 1898)

Socialism, Marxism, Feminism, Social Democratic Federation, Socialist League (1884)

[[Eleanor Marx-Aveling|]]

[[Eleazar Solntsev|]]

(1900–1936)

Communism, Russia, Trotskyism

[[Elena Stasova|]]

(3 October 1873–31 December 1966)

Marxism, Russia, Bolshevism

[[Elisabeth Engels|]]

[[Emil Blank|]]

[[Emil Engels|]]

[[Emil Engels Junior|]]

Germany, United Kingdom

[[Emile Pouget|]]

(12 October 1860–21 July 1931)

Anarchism, France, CGT (France), Revolutionary syndicalism

[[Emile Vandervelde|]]

(25 January 1866–27 December 1938)

Belgium, Second International, Social democracy

[[Emile Zola|]]

(2 April 1840–29 September 1902)

France, Literature

[[Emma Adler|]]

(20 May 1858–23 February 1935)

Socialism, Austria

[[Emma Goldman|]]

(27 June 1869–14 May 1940)

Anarchism, Socialism, Russia, Lithuania

[[Emmanuil Luganovsky|]]

Ukraine, Bolshevism

[[Emrys Hughes|]]

(10 July 1894–18 October 1969)

United Kingdom, Socialism, Labour Party (UK)

[[Enrico Bignami|]]

(3 December 1844–13 October 1921)

Socialism, Italy, First International

[[Enrico Ferri (PSI)|]]

Socialism, Fascism, Italy, Italian Socialist Party

[[Ephraim Sklyansky|]]

(8 December 1892–27 August 1925)

Communism, Russia, Ukraine, Bolshevism, RSDLP

[[Epicurus|]]

(342 BC ^JL–270 BC ^JL)

Philosophy, Ancient history, Materialism, Greece

[[Ernest Charles Jones|]]

(25 January 1819–26 January 1869)

United Kingdom, Socialism, Poetry, Chartism

[[Ernest Mandel|]]

(5 April 1923–20 July 1995)

Communism, Belgium, Trotskyism, Fourth International

[[Ernesto Che Guevara|]]

(14 June 1928–9 October 1967)

Communism, Cuba, Argentina

[[Ernst Bettelheim|]]

(30 May 1889–18 February 1959)

Communism, Hungary

[[Ernst Daumig|]]

(25 November 1866–4 July 1922)

[[Ernst Dronke|]]

(17 August 1822–2 November 1891)

Germany, Socialism, True socialism, Communist League (Marx-Engels)

[[Ernst Mach|]]

(18 February 1838–19 February 1916)

Idealism, Science, Empiricism

[[Ernst Meyer|]]

(10 July 1887–2 February 1930)

Germany, Communism, KPD

[[Ernst Reuter|]]

(29 July 1889–29 September 1953)

Germany, Communism, Social democracy, SPD, KPD

[[Ernst Thälmann|]]

(16 April 1886–18 August 1944)

Germany, Communism, KPD

[[Erwin Ackerknecht|]]

(1 June 1906–18 November 1988)

Germany, Communism, Trotskyism

[[Erwin Wolf|]]

(7 December 1919–30 September 1994)

Germany, Communism, Trotskyism, KPD

[[Esteban Volkov|]]

(30 May 1889–18 February 1959)

Russia, Trotskyism, Mexico

[[Eugen Dühring|]]

(12 January 1833–21 September 1921)

Germany, Socialism, Economics, Positivism

[[Eugen Leviné|]]

(10 May 1883–5 June 1919)

Germany, Socialism, Russia, SPD

[[Eugen Oswald|]]

(1 January 1826–1 January 1912)

Socialism, United States, Socialist Party of America

[[Eugen Varga|]]

(6 November 1879–7 October 1964)

Communism, Hungary

[[Eugene Debs|]]

(5 November 1855–20 October 1926)

[[Eugène Fournière|]]

[[Eugène Pottier|]]

(4 October 1816–6 November 1887)

[[Eugène Varlin|]]

(5 October 1839–28 May 1871)

Socialism, France, Proudhonism, Paris Commune

[[Evgenia Papritz|]]

Socialism, Russia

[[Evgenia Popova|]]

(24 April 1889–25 May 1924)

[[Evgeny Pashukanis|]]

(23 February 1891–4 September 1937)

[[Evgraf Litkens|]]

(1888–1922)

Russia, Bolshevism

[[F. Wiesen|]]

Germany, Socialism, United States

[[FTSF|]]

(1879–1902)

Socialism, France, Party, Possibilism

[[Fanni Kravchinskaya|]]

[[Farrell Dobbs|]]

(25 July 1907–31 October 1983)

[[Fedor Samoilov|]]

(12 April 1882–13 June 1952)

Russia, RSDLP

[[Feliks Kon|]]

(18 May 1864–30 July 1941)

Communism, Poland, Russia, Polish Socialist Party

[[Felix Dzerzhinsky|]]

(11 September 1877–20 July 1926)

Communism, Poland, Russia, Bolshevism, RSDLP

[[Felix Morrow|]]

(3 June 1906–28 May 1988)

[[Felix Weil|]]

(8 February 1898–18 September 1975)

Social democracy, Netherlands

[[Ferdinand Domela Nieuwenhuis|]]

(31 December 1846–18 November 1919)

[[Ferdinand Fleckles|]]

Germany, Physician

[[Ferdinand Flocon|]]

(1 November 1800–15 May 1866)

Germany, Neue Rheinische Zeitung, Communist League (Marx-Engels)

[[Ferdinand Freiligrath|]]

(17 June 1810–18 March 1876)

Germany, Poetry

[[Ferdinand Jozewicz|]]

Germany, Socialism, First International

[[Ferdinand Lassalle|]]

(11 April 1825–31 August 1864)

Germany, Socialism, Social democracy

[[Ferdinand Tönnies|]]

(26 July 1855–9 April 1936)

Germany, Philosophy, Sociology

[[Ferdinand Wolff|]]

(1812–1895)

[[Fernand Caussy|]]

(1881–1959)

[[Fernand Loriot|]]

(10 October 1870–12 October 1932)

Communism, France, SFIO, French Communist Party

[[Fidel Castro|]]

(13 August 1926–25 November 2016)

Communism, Socialism, Cuba, Nationalism

[[Filipp Makharadze|]]

(9 March 1868–10 December 1941)

Communism, Russia, Bolshevism, RSDLP, Georgia

[[Filippo Turati|]]

(26 November 1857–29 March 1932)

Socialism, Italy, Italian Socialist Party

[[Finnish Communist Party|]]

(29 August 1918–1992)

Communism, Party, Third International, Finland

[[First International|]]

(1864–1873)

International organization, Internationalism, Party, Working class

[[Flora Tristan|]]

(7 April 1803–14 November 1844)

Socialism, France, Feminism

[[Florence Kelley|]]

(12 September 1859–17 February 1932)

Socialism, United States

[[Florent Galloy|]]

(14 November 1904–1958)

Marxism, Belgium, Trotskyism, Engineering

[[Fourth International|]]

(1938–)

International organization, Party, Trotskyism, Leon Trotsky

[[Francis de Pressensé|]]

(30 September 1853–19 January 1914)

United States, US Democratic Party

[[Francisco Mora|]]

Socialism, Spain, PSOE

[[Frank Kitz|]]

(1 January 1849–8 January 1923)

United Kingdom, Anarchism, Socialism

[[Frank Maitland|]]

United Kingdom, Socialism, Trotskyism, Scotland

[[Franklin Roosevelt|]]

(30 January 1882–12 April 1945)

[[Franz Duncker|]]

(4 June 1822–18 June 1888)

[[Franz Koritschoner|]]

(23 February 1892–9 June 1941)

Communism, Austria, Communist Party of Austria

[[Franz Mehring|]]

(27 February 1846–28 January 1919)

Germany, Socialism, Marxism, Social democracy, Spartacus League

[[Franz Pfemfert|]]

(20 November 1879–26 May 1954)

Germany, Communism, KPD, Spartacus League

[[Franz Schuhmeier|]]

(11 October 1864–11 February 1913)

Socialism, Austria, SDAPÖ

[[Franz Wiede|]]

[[Franzisca Kugelmann|]]

(23 December 1868–September 1942)

Germany, Ludwig Kugelmann

[[François Billoux|]]

(21 May 1903–14 January 1978)

Communism, France, SFIO, French Communist Party

[[François Lafargue|]]

France

[[François Pardigon|]]

[[Fred Zeller|]]

(26 March 1912–7 February 2003)

Communism, Socialism, France, Trotskyism, SFIO

[[Frederic Harrison|]]

(18 October 1831–14 January 1923)

United Kingdom, Socialism

[[Frederick Greenwood|]]

(1 April 1830–14 December 1909)

United Kingdom

[[Fredrik Ström|]]

(10 July 1880–23 November 1948)

Communism, Sweden, Left Party (Sweden), Social Democrats (Sweden)

[[French Communist Party|]]

(30 December 1920–)

Communism, France, Party, Third International

[[French Socialist Party|]]

[[Frida Kahlo|]]

(6 July 1907–13 July 1954)

[[Friedrich Adolph Sorge|]]

(9 November 1828–26 October 1906)

Germany, Communism, United States, First International

[[Friedrich Albert Lange|]]

(28 September 1828–23 November 1875)

Germany, Socialism, Philosophy

[[Friedrich Bolte|]]

(7 December 1896–23 November 1959)

Germany, United States

[[Friedrich Ebert|]]

(4 February 1871–28 February 1925)

[[Friedrich Engels|]]

(28 November 1820–5 August 1895)

Germany, Marxism, Young Hegelians, Young Germany, First International

[[Friedrich Lengnik|]]

(1873–1936)

Germany, Communist League (Marx-Engels)

[[Friedrich Lessner|]]

(1825–1910)

[[Friedrich Moll|]]

(31 January 1882–8 May 1951)

Germany, United States, First International, ADAV

[[Friedrich Nietzsche|]]

(15 October 1844–25 August 1900)

Germany, Philosophy

[[Friedrich Wilhelm Joseph Schelling|]]

(27 January 1775–20 August 1854)

Germany, Philosophy

[[Fritz Adler|]]

(29 April 1878–11 April 1942)

Socialism, Austria, SDAPÖ

[[Fritz Heckert|]]

(28 March 1884–7 April 1936)

Germany, Communism, KPD, Spartacus League

[[Fritz Platten|]]

(8 July 1883–22 April 1942)

Communism, Switzerland

[[Fritz Sternberg|]]

(11 June 1895–18 October 1963)

Germany, Communism, KPD

[[Frédéric Bastiat|]]

(30 June 1801–24 December 1850)

France, Economics

[[Fyodor Cherevanin|]]

(25 July 1959–4 October 2014)

Socialism, Russia, RSDLP, Menshevism

[[Fyodor Dan|]]

(19 October 1871–22 January 1947)

Socialism, Russia, RSDLP, Menshevism

[[Fyodor Dingelstedt|]]

(1890–1943)

Communism, Russia, Trotskyism, Bolshevism

[[Fyodor Kolesov|]]

(20 May 1891–29 July 1940)

[[Fyodor Raskolnikov|]]

(28 January 1892–12 September 1939)

Communism, Russia, Bolshevism, RSDLP, CPSU

[[Fyodor Sergeyev|]]

(19 March 1883–24 July 1921)

[[Fyodor Syromolotov|]]

(1 May 1877–20 April 1949)

[[Félix Chemalé|]]

Socialism, France, Proudhonism

[[Félix Pyat|]]

(4 October 1810–3 August 1889)

[[G. A. Kuklin|]]

[[G. Blume|]]

[[G. D. Tsiurupa|]]

[[G. F. Fyodorov|]]

(15 May 1874–19 September 1966)

[[G. M. Vyazmensky|]]

Germany, Russia, RSDLP

[[Gabriel Baer|]]

(13 January 1919–22 September 1982)

Germany, Communism, Trotskyism, Palestine, Israel

[[Gabriel Deville|]]

(8 March 1854–28 February 1940)

[[Garald Krumin|]]

(21 July 1894–17 May 1943)

Communism, Russia, Latvia

[[Garibaldi|]]

(4 July 1807–2 June 1882)

Italy, Republic

[[Gaston Monmousseau|]]

(17 January 1883–11 July 1960)

Communism, France, Anarcho-syndicalism, French Communist Party, Trade unionists, CGT (France)

[[Gavriil Leiteisen|]]

(9 November 1874–2 January 1919)

Socialism, Russia, Bolshevism, RSDLP

[[Gavril Myasnikov|]]

(25 February 1889–16 November 1945)

[[Gennaro Bovio|]]

Socialism, Italy

[[Genrikh Graftio|]]

(26 December 1869–30 April 1949)

Russia, Engineering

[[Georg Benz|]]

[[Georg Friedrich Rheinländer|]]

[[Georg Herwegh|]]

[[Georg Ledebour|]]

(7 March 1850–31 March 1947)

[[Georg Lukács|]]

(13 April 1885–4 June 1971)

Communism, History, Hungary

[[Georg Schumacher|]]

Germany, Neue Rheinische Zeitung, Communist League (Marx-Engels)

[[Georg Weerth|]]

(17 February 1822–30 July 1856)

[[Georg von Vollmar|]]

(7 March 1850–30 June 1922)

Germany, Socialism, Reformism, Second International, Social democracy, SPD

[[George Bernard Shaw|]]

(26 July 1856–2 November 1950)

United Kingdom, Socialism, Arts, Fabians

[[George Breitman|]]

(28 February 1916–19 April 1986)

Communism, United States, Trotskyism, SWP (USA)

[[George Holyoake|]]

(13 April 1817–22 January 1906)

United Kingdom, Secularism

[[George Julian Harney|]]

(17 February 1817–9 December 1897)

Communism, United Kingdom, Chartism

[[George Lansbury|]]

(22 February 1859–7 May 1940)

United Kingdom, Socialism, Independent Labour Party, Labour Party (UK)

[[George Moore|]]

United Kingdom

[[George Novack|]]

(5 August 1905–30 July 1992)

United Kingdom, First International, Trade unionists

[[George Odger|]]

(1 January 1814–1 January 1877)

[[George Shipton|]]

(1 January 1839–1 January 1911)

United Kingdom, Trade unionists

[[George William Lamplugh|]]

(8 April 1859–9 October 1926)

United Kingdom, Geology

[[Georges Clemenceau|]]

(28 September 1841–24 November 1929)

France, Parti Radical

[[Georges Fux|]]

(1911–)

Communism, Belgium, Trotskyism

[[Georges Haupt|]]

(18 January 1928–14 March 1978)

Socialism, France, Romania

[[Georges Ibrahim Abdallah|]]

[[Georges Politzer|]]

(3 May 1903–23 May 1942)

[[Georges Vereeken|]]

(1896–1978)

Communism, Belgium, Trotskyism

[[Georgi Blagonravov|]]

(6 May 1896–9 February 1938)