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.

List

•  Algeria – Socialist Workers Party, Workers' Party
•  Argentina – Movement for Socialism, Self-determination and Freedom, Socialist Left, Socialist Workers' Party, United Socialist Workers' Party, Workers' Left Front, Workers' Party, Workers' Socialist Movement
•  Australia – Socialist Alternative, Socialist Equality Party, Solidarity, Spartacist League,^[1] Workers' Liberty Australia, Freedom Socialist Party
•  Austria – Left Turn, Socialist Left Party, The Spark, Workers Viewpoint
•  Azerbaijan – HAQİQAT
•  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 – Freedom, Socialism and Revolution, Revolts, Revolutionary Workers' Movement, Socialist Democracy, Socialist Workers' Current, United Socialist Workers' Party, Workers' Cause Party
•  Canada – International Socialists, Socialist Action, Socialist Alternative, Socialist Fightback, Trotskyist League in Quebec^[2] and Canada^[3]
  •  Quebec – Socialist Alternative, Socialist Left, La Riposte Socialiste
•  China – China Worker^[4]
  •  Hong Kong – Revolutionary Communist Party of China (October Review), Socialist Action
•  Chile – Revolutionary Workers Party, Movimiento Anticapitalista,^[5]
•  Colombia – Presents for Socialism
•  Costa Rica – New Socialist Party, Socialist Organization, Workers' Party
•  Cyprus – New Internationalist Left, Workers' Democracy
•  Czech Republic – Marxist Alternative, Socialist Alternative Future, Socialist Organisation of Working People, Socialist Solidarity,
•  Denmark – International Socialists, Socialist Workers Party, Revolutionary Socialists (IMT)
•  Egypt – Revolutionary Socialists
•  Finland – Marxist Workers' League, Socialist Alternative
•  France – Révolution Permanente, Independent Workers' Party, New Anticapitalist Party, Revolutionary Left, Trotskyist League of France, Workers' Struggle
•  Germany – The Spark, Revolutionary Internationalist Organisation, Socialist Equality Party, Socialist Alternative, Socialist Organisation 'Solidarity', Workers' Power, Spartakist-Arbeiterpartei^[6]
•  Ghana – International Socialist Organisation
•  Greece – 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,^[7] Workers Revolutionary Party
•  India – Radical Socialist,^[8] New Socialist Alternative, Workers' Socialist Party
•  Indonesia - Perhimpunan Sosialis Revolusioner,^[9] Angkatan Bolshevik Revolusioner Internasionalis (ABRI)^[10]
•  Iran – Socialist Workers' Party of Iran
•  Ireland – People Before Profit, Solidarity, Socialist Party, Socialist Workers Network, Militant Left
•  Israel and  Palestine – Socialist Struggle Movement
•  Italy – Left Classe Revolution,^[11] Workers' Communist Party, Communist Alternative Party, Anticapitalist Left
•  Ivory Coast – Militant Côte d'Ivoire
•  Japan – Japan Revolutionary Communist League, Spartacist Group Japan,^[12] Japan Revolutionary Communist League (Revolutionary Marxist Faction)
•  South Korea – Workers' Solidarity, Bolshevik Group,^[13] March To Socialism^[14]
•  Lebanon – Revolutionary Communist Group
•  Malaysia - Socialist Alternative
•  Mexico – Socialist Workers Movement
•  Netherlands – Socialist Alternative Politics, Socialist Alternative, International Socialists, Vonk (International Marxist Tendency)
•  New Zealand – International Socialist Organisation, Socialist Voice, Socialist Aotearoa
•  Nicaragua – Workers' Revolutionary Party
•  Nigeria – Democratic Socialist Movement, Movement for a Socialist Alternative
•  Norway – Internationalist League of Norway
•  Pakistan – Socialist Movement Pakistan, The Struggle Pakistan
•  Paraguay – Workers' Party
•  Peru – Workers' Revolutionary Party, Socialist Workers Party, Socialist Workers Party (1992)
•  Poland – Socialist Alternative, Workers' Democracy
•  Portugal – Revolutionary Socialism, Socialist Alternative Movement
•  Romania – Hand of Labour^[15]
•  Russia – Organisation of Communist Internationalists, Revolutionary Workers' Party, Russian Socialist Movement, Socialist Alternative, Socialist Tendency
•  South Africa – Spartacist South Africa,^[16] 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 – 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
•  Sudan – Socialist Alternative
•  Sweden – Socialist Party, Socialist Alternative, International Socialists, Workers' Power
•   Switzerland – Solidarity, The Spark
•  Taiwan - International Socialist Forward, The Spark(IMT Taiwan)
•  Thailand – Workers Democracy Group
•  Togo – Workers' Party
•  Tunisia – Socialist Alternative, Workers' Left League
•  Turkey – Revolutionary Workers' Party, Revolutionary Socialist Workers' Party, New Way, Socialist Alternative, Workers' Fraternity Party
•  Ukraine – Commune,^[17] Social Movement, Ukrainian Socialist League
•  United Kingdom – 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, Socialist Alternative
  •  England and  Wales – Socialist Party
  •  Scotland – Socialist Party Scotland
•  United States – Socialist Alternative, Socialist Action, Socialist Equality Party, Freedom Socialist Party, Fourth International Caucus, Internationalist Group, Refoundation and Revolution, Spartacist League, Socialist Workers Organization, Socialist Organizer, The Left Party US, Left Voice,^[18] Spark Revolutionary Workers League, Socialist Revolution, Workers' Voice
•  Uruguay – Workers' Party, International Socialism; Revolutionary Workers' Party, Fourth International Posadist, Current of Workers for Socialism
•  Venezuela – Revolutionary Socialism, Revolutionary Marxist Current, League of Workers for Socialism
•  Zimbabwe – International Socialist Organisation