The following is a list of Trotskyist organizations by country. This article lists only those currently existing parties which self-identify ideologically as Trotskyist. Included are Trotskyist factions, but not youth organizations or party alliances.
- Algeria – Socialist Workers Party, Workers' Party
- Argentina – Revolucion, Movement for Socialism, Self-determination and Freedom, Socialist Left, Socialist Workers' Party, United Socialist Workers' Party, Workers' Party, Workers' Socialist Movement
- Australia – ICR Australia, Socialist Alternative, Socialist Equality Party, Solidarity, Spartacist League,[1] Workers' Liberty Australia, Freedom Socialist Party
- Austria – Der Funke, Left Turn, Socialist Left Party, The Spark, Workers Viewpoint
- Azerbaijan – HAQİQAT
- Bangladesh – ICR Bangladesh, Communist Party of Bangladesh (Marxist–Leninist) (Section of the Fourth International)
- Belgium - International Workers' League, Left Socialist Party, Anticapitalist Left
- Bolivia – Revolutionary Worker League – Fourth International, Revolutionary Workers Party, Workers' Socialist Movement
- Botswana – International Socialist Organization
- Brazil – Organização Comunista Internacionalista, Centelhas,[2] Ecosocialist Rebellion,[3] Freedom, Socialism and Revolution (LSR), Insurgência, Revolutionary Regroupment,[4] Revolutionary Workers' Party,[5] Socialist Left Movement, Socialist Revolution,[6] Subverta,[2] United Socialist Workers' Party, Workers' Cause Party, Workers' Revolutionary Movement, Workers' Socialist Current
- Canada – Revolutionary Communist Party International Socialists, Socialist Action, Socialist Alternative, Trotskyist League in Quebec[7] and Canada[8]
- China – China Worker[9]
- Chile – Revolutionary Workers Party, Movimiento Anticapitalista,[10]
- Colombia – Colombia Marxista, Presents for Socialism
- Costa Rica – New Socialist Party, Socialist Organization, Workers' Party
- Cyprus – New Internationalist Left, Workers' Democracy
- Czech Republic – Komunistická Avantgarda, Socialist Alternative Future, Socialist Organisation of Working People, Socialist Solidarity,
- Denmark – Revolutionært Kommunist Partiet, International Socialists, Socialist Workers Party
- Egypt – Revolutionary Socialists
- Finland – Marxist Workers' League, Socialist Alternative, Vallankumous
- France – Parti Communiste Revolutionnaire, Independent Workers' Party, Revolutionary Left, Trotskyist League of France, Workers' Struggle
- Germany – Revolutionäre Kommunistische Partei The Spark, Revolutionary Internationalist Organisation, Socialist Equality Party, Socialist Alternative, Socialist Organisation 'Solidarity', Workers' Power, Spartakist-Arbeiterpartei[11]
- Ghana – International Socialist Organisation
- Greece – Epanastasi, Internationalist Workers' Left, Organisation of Internationalist Communists of Greece, Organization of Communist Internationalists of Greece–Spartacus, Socialist Workers' Party, Start – Socialist Internationalist Organisation, Trotskyist Group of Greece,[12] Workers Revolutionary Party
- India – ICR India, Radical Socialist,[13] New Socialist Alternative, Workers' Socialist Party
- Indonesia - ICR Indonesia, Perhimpunan Sosialis Revolusioner,[14] Angkatan Bolshevik Revolusioner Internasionalis (ABRI)[15]
- Iran – Socialist Workers' Party of Iran
- Ireland – Revolutionary Communist of Ireland, People Before Profit, Solidarity, Socialist Party, Socialist Workers Network, Militant Left
- Israel and Palestine – Socialist Struggle Movement
- Italy – Partito Comunista Rivoluzionario,[16] Workers' Communist Party, Communist Alternative Party, Anticapitalist Left
- Ivory Coast – Militant Côte d'Ivoire
- Japan – Japan Revolutionary Communist League, Spartacist Group Japan,[17] Japan Revolutionary Communist League (Revolutionary Marxist Faction)
- South Korea – Workers' Solidarity, Bolshevik Group,[18] March To Socialism[19]
- Lebanon – Revolutionary Communist Group
- Malaysia - Socialist Alternative, Ombak Revolusi
- Mexico – Socialist Workers Movement, Organizacion Comunista Revolucionaria
- Netherlands – Socialist Alternative Politics, Socialist Alternative, International Socialists, Vonk (Revolutionary Communist International)
- New Zealand – International Socialist Organisation, Socialist Voice, Socialist Aotearoa, Socialist Appeal
- Nigeria – Democratic Socialist Movement, Movement for a Socialist Alternative
- Norway – Internationalist League of Norway, Revolusjon
- Pakistan – Revolutionary Communist Party, Socialist Movement Pakistan, The Struggle Pakistan
- Paraguay – Workers' Party
- Peru – ICR Perù, Workers' Revolutionary Party, Socialist Workers Party, Socialist Workers Party (1992)
- Poland – Czerwony Front , Socialist Alternative, Workers' Democracy
- Portugal – Coletivo Comunista Revolucionario, Revolutionary Socialism, Socialist Alternative Movement
- Romania – Hand of Labour,[20] ICR Romania
- Russia – Organisation of Communist Internationalists, Revolutionary Workers' Party, Socialist Tendency
- South Africa – Revolution, Spartacist South Africa,[21] Workers and Socialist Party, Workers International Vanguard Party, Keep Left, African Peoples' Democratic Union of Southern Africa, International Socialist Movement, Non-European Unity Movement
- Spain – Organización Comunista Revolucionaria, Revolutionary Workers' Party, Internationalist Struggle, Red Current, Workers' Revolutionary Current, Revolutionary Left, Revolutionary Socialism, Anticapitalistas, Internationalist Socialist Workers' Party, Revolutionary Anticapitalist Left
- Sri Lanka – Lanka Equal Society Party, Lanka Equal Society Party (Alternative Group), New Equal Society Party, United Socialist Party, Socialist Party of Sri Lanka, Socialist Equality Party, Revolutionary Workers Party, ICR Sri Lanka
- Sudan – Socialist Alternative
- Sweden – Revolutionära Kommunistiska Partiet, Socialist Party, Socialist Alternative, International Socialists, Workers' Power
- Switzerland – Revolutionäre Kommunistische Partei, Solidarity
- Taiwan - International Socialist Forward, The Spark
- Thailand – Socialist Workers Thailand, ICR Thailand
- Tunisia – Socialist Alternative, Workers' Left League
- Turkey – Revolutionary Workers' Party, Revolutionary Socialist Workers' Party, New Way, Socialist Alternative, Workers' Fraternity Party, ICR Turkey
- Ukraine – Commune,[22] Social Movement, Ukrainian Socialist League
- United Kingdom – Revolutionary Communist Party, Alliance for Workers' Liberty, Communist League, International Socialist League, Workers' Power, Socialist Action, Socialist Appeal, Socialist Equality Party, Socialist Resistance, Socialist Workers' Party, Spartacist League, Workers' Fight, Workers International to Rebuild the Fourth International, Workers Revolutionary Party, Socialist Alternative
- United States – Revolutionary Communists of America[23] (RCI), Socialist Alternative, Socialist Action, Socialist Equality Party, Freedom Socialist Party, Fourth International Caucus, Internationalist Group, Reform and Revolution, Spartacist League, Socialist Workers Organization, Socialist Organizer, The Left Party US, Left Voice,[24] Spark, Revolutionary Workers League, Workers' Voice
- Uruguay – Workers' Party, International Socialism; Revolutionary Workers' Party, Fourth International Posadist, Current of Workers for Socialism
- Venezuela – Lucha de Clases, Revolutionary Socialism, Revolutionary Marxist Current, League of Workers for Socialism
- Zimbabwe – International Socialist Organisation