This is a list of the many Trotskyist international tendencies. Some claim to be the original Fourth International or to be refounding, reorganising it and so forth. There is also considerable overlap between the various tendencies with some being within others. Certain tendencies which claim to be Trotskyist make no attempt to claim any relationship to the Fourth International in an organisational sense and argue that it no longer exists. Others argue that the title "Fourth International" is so discredited that a Fifth International must be built. The various tendencies listed here range in size from those having thousands of adherents internationally to tendencies which can barely claim a hundred.

• Bolshevik Current for the Fourth International
• Collective for an International Conference of the Principled Trotskyism
  • Liaison Committee of Militants for a Revolutionary Communist International
  • Organizing Committee of Principist Trotskyism (Fourth International)
• Committee for a Marxist International
• Committee for a Workers International
• Communist Organisation for a Fourth International
• Coordination Committee for the Construction of the International Workers Party (KoorKom)
• Fourth Internationalist Tendency
• International Bolshevik Tendency
• International Centre of Orthodox Trotskyism
• International Committee of the Fourth International
• International Communist League (Fourth Internationalist)
• International Liaison Committee for a Workers' International
• International Secretariat of the Fourth International
• International Socialist Tendency
• International Trotskyist Committee for the Political Regeneration of the Fourth International
• International Workers League (Fourth International)
• International Workers' Unity (Fourth International)
• Internationalist Communist Union
• League for the Fifth International
• League for the Fourth International
• Liaison Committee for the Reconstruction of the Fourth International
• Movement (Movimiento)
• Movement for the Refoundation of the Fourth International
• New Course
• Trotskyist Fraction - Fourth International
• Trotskyist-Posadist IVth International
• United Secretariat of the Fourth International
• Workers International to Rebuild the Fourth International

There are also international groupings around some Trotskyist groups which do not call themselves internationals:

• Freedom Socialist Party
• Alliance for Workers Liberty

Defunct

• Fourth International (International Committee) (FIIC), 1980-1981.
• Fourth Internationalist Tendency , 1979
• International Centre for the Reconstruction of the Fourth International (CIRQI)
• International League for the Reconstruction of the Fourth International (ILRFI)
• International Liaison Committee of Communists (ILCC)
• International Trotskyist Opposition
• International Workers' Committee
• International Revolutionary Marxist Tendency (TMRI), 1965-1992
• Leninist-Trotskyist Tendency (LTT)
• Organizing Committee for the Reconstruction of the Fourth International (CORQI), 1972-1980
• Trotskyist International Liaison Committee , 1979-1984

Ex-Trotskyists

• International Leninist Current (ILC)
• Pathfinder tendency, or Communist Leagues loyal to the Socialist Workers Party (US)
• Revolutionary Workers Ferment (Fomento Obrero Revolucionario, FOR)
• Socialist Utopia (Utopia Socialista)

See also: List of left-wing internationals, Leon Trotsky, List of Communist Parties, List of members of the Comintern, List of left communist internationals

External links

• List of socialist internationals and List of Trotskyist parties and their internationals