Babel, Issac Emmanuilovich Babeuf, Gracchus Bacon, Francis Badaiev, Alexei Egorovich Bailey, Samuel Bailly, Jean Sylvain Bakinski Rabótchi (Operário de Baku) Bakúnine, Mikhail Alexándrovitch Bakuninismo Balabanoff, Angelica Ballhorn, Johann Balzac, Honoré Baraguay d'Hilliers, Achille Barata Ribeiro, Agildo da Gama Barbès. Armand Barnave, Antoine Pierre Joseph Marie Baroche, Pierre Jules Barros, Ademar Pereira de Barrot, Odilon Bassermann, Friedrich Daniel Bastiat, Frédéric Bastide, Jules Batista, Fulgencio Bauer, Bruno Bauer, Otto Bauer, Helene Bazárov, Rúdnev), Vladímir Alexándrovitch Baze, Jean Didier Beaumarchais, Pierre Augustin Caron de Bebel, August Beck, Józef Becker, Bernhard Becker, Jean-Philippe Bedeau, Marie-Alphonse Beecher-Stowe, Harriet Elisabeth Beer, Max Beesly, Edward Spencer Belínski,  Vissarion Grigónevitch Belov (Tséitlin, L. S.) Bem, Joseph Benedek, Ludwig August Ritter von Benes, Edouard Benévolo, Aníbal Bennigsen, E. P. Benoist d'Azy, Denis Benoit d'Azy, Denis Bérard, Victor Berdiáiev, Nikolai Alexándrovitch Berger, Victor Bergeret, Jules Victor Beria. Lavrenty Bermúdez, José Francisco Bernard Bernardes, Artur Berner Tagwacht Bernhard, Ludwig Bernstein, Eduard Bernsteinianismo Berry, Mari-Caroline-Ferdinande-Louise, duquesa de Berryer, Pierre Antoine Bervi, Vassili Vassílievitch Beslay, Charles Bevan, W. Bevin, Ernest Bez Zaglávia (Sem Título) Bezerra, Gregório Bidault, Georges-Augustin Biemiller, Andrew John Bierut, Boleslaw Bilen, Ismail Billaut, Auguste-Adolphe Marie Billoux, François Biloie (O Passado) Biron, Ernst Johann Bismarck, Otto Eduard Bittleman, Alexander Blanc, Louis Jean Joseph Charles Blanchet, Stanilas (nome verdadeiro Poruille) Blanqui, Louis-Auguste Blanquismo Blind, Karl Block, Maurice Blum, Léon Blum, Robert Blumkin, Yakov Grigorevich Boboríkne, Piotr Dmítrievitch Bóbrinski, Vladímir Alexéievitch Bogdánov, A. (Malinóvski, Alexandr Alexándrovitch) Boguslawski, Albert Böhm-Bawerk, Eugen Bohm, Jakob Boisguillebert, Pierre (Pierre le Pesant, Sieur de Boisguilbert) Boissy D'Anglas, Jean-Gabriel conde de Bolcheviques-partidistas Bolchevismo Bolívar, Simón Bonald, Louis Gabriel Ambroise Bonaparte, Jérôme Bonapartismo Bonfim, Orlando Bonnet, Georges Bonte, Florimond Borbá (Luta) Bordiga, Amadeu Born, Stephan (Buttermilch, Simon) Bosch, Eugenia Bogdanowna (Gotlibiwna) Bouças, Valentim Fernandes Boves, José Tomás Branco, Humberto de Alencar Castelo Brandenburg, Friedrich Wilhelm, conde Brandler, Heinrich Braun (Stepánov, Serguéi Ivánovitch) Bréa, Jean Baptiste Fidèle Brechko-Brechkóvskaia, Ekaterina Konstantínovna Brentanismo Brentano, Lorenz Peter Carl Brentano, Lujo Brest-Litovsk, Paz de Bright, John Brión, Luis Brissot, Jean-Pierre Brockway, Archibald Fenner - Barão Broglie, Achille-Charles Brouckère, Louis de Brougham, Henry Peter Brousse, Paul Broussistas (Possíbilistas) Browder, Earl Russell Brúker (Makhnóvets, Lídia Petrovna) Brüning, Heinrich Brutus, Marcus Junius Bubnov, Andrei Buchanan, David Buchanan, George William Buchez, Philippe Büchner, Friedrich Karl Christian Ludwig Buck. Timothy (Tim) Budenz, Louis Francis Budionni, M. Semion Bugeaud de la Piconnerie, Thomas Robert Bukhárine, Nikolai Ivánovitch Bulgakov, Serguéi Nikoláievitch Bulganin, Nikolai Bulíguine, Alexandr Grigórievitch Búlkine (Semiónov), Fiódor Afanássievitch Bund (União Geral Operária Judaica da Lituânia, Polónia e Rússia) Bureau Socialista Internacional (BSI) Buriánov, Andrei Faddéievitch Burke, Edmund Burnham, James Burns, Robert Búrtsev, Vladímir Lvóvitch