The 11th party congress of the Socialist Unity Party of Germany (SED), held in Berlin April 17–21 1986, was attended by 141 foreign delegations from 104 countries (143 delegations per one source).The Eleventh Congress of the Socialist Unity Party of Germany, in Information Bulletin, Vol. 24. Progress Books, 1986. p. 13 The foreign delegations included the delegation of the Communist Party of the Soviet Union, headed by Mikhail Gorbachev.

The 11th SED party congress took place less than two months after the 27th Congress of the Communist Party of the Soviet Union. Furthermore, the 11th SED party congress took place within a span of various other congresses of ruling parties of the Socialist Bloc - the 3rd congress of the Communist Party of Cuba (February 1986), the 17th congress of the Communist Party of Czechoslovakia (March 1986), the 13th congress of the Bulgarian Communist Party (April 1986), the 19th congress of the Mongolian People's Revolutionary Party (May 1986), the 10th congress of the Polish United Workers' Party (July 1986), the 4th congress of the Lao People's Revolutionary Party (November 1986) and the 6th congress of the Communist Party of Vietnam (December 1986).Jahrbuch der internationalen Politik und Wirtschaft. Staatsverlag der Deutschen Demokratischen Republik., 1987. pp. 156, 415

On April 22, 1986 the SED Central Committee hosted the foreign delegates at a reception at the House of the Central Committee. Honecker and Gorbachev held toasts at the reception.

Foreign delegations at the 11th SED party congress + List of foreign delegations at the 11th SED party congressCountryPartyHead of DelegationOther delegation membersPeople's Democratic Party of Afghanistan (PDPA)Nur Ahmed Nur, Politburo member, secretary of the Central Committee and Deputy Chairman of the Revolutionary Council of the Democratic Republic of AfghanistanGhous Sameuddin, Instructor of the International Relations Department of the Central Committee Abdul Wahed Baba Jan, Ambassador of the Democratic Republic of Afghanistan to the German Democratic RepublicParty of the National Liberation Front (FLN)Salah Goudjil, Member of the Permanent Secretariat of the Central CommitteeYoucef Kraiba, Ambassador of Algeria to the German Democratic Republic Amir Benelmedjat, official of the International Relations Department of the Permanent Secretariat of the Central Committee.Popular Movement for the Liberation of Angola – Party of Labour (MPLA-PT)Juilão Mateus Paulo "Dino Matross", Politburo member, Central Committee Secretary for State and Judicial OrgansAgostinho André Mendes de Carvalho, candidate member of the Central Committee and Ambassador of Angola to the German Democratic Republic Antonio Maria dos Santos Dias, Head of European Sector of the International Relations Department of the Central Committee.Communist Party of Argentina (PCA)Athos Fava, General SecretarySalvador Páez, member of the Political Commission, and secretary of the Western Regional Party Organization of the Buenos Aires Province.Communist Party of Austria (KPÖ)Erwin Scharf, Politburo memberChristine Howorka, member of the leadership of the Vienna party branchSocialist Party of Australia (SPA)Jack McPhillips, PresidentDr. Hannah Middleton, Secretariat member.National Liberation Front - Bahrain (NLF-B)Ali Naji Abdallah, Leading Committee MemberAbdulhadi Khalaf, Candidate Member of the Leading Committee.Communist Party of Bangladesh (CPB)Ajoy Roy, Secretary of the Central CommitteeCommunist Party of Belgium (KPB/PCB)Albert De Coninck, member of Central CommitteeSocialist Party (PS), Executive Bureau member, Minister for German Community AffairsSocialist Party (SP), Executive Bureau member, chairman of Senate fraction, Member of ParliamentPeople's Revolutionary Party of Benin (PRPB)C.F. Azodogbehou, member of Central Committee, First Deputy Chairman of the National Development Commission of the Central CommitteeP. Sedegan, Permanent Secretary of the Organization Department of the Central CommitteeCommunist Party of Bolivia (PCB)Humberto Ramírez, member of the Political Commission and secretary of the Central CommitteeBrazilian Communist Party (PCB), member of the Executive Committee and secretary of the Central CommitteeBulgarian Communist Party (BKP), Politburo member and secretary of the Central Committee, Central Committee member and First Secretary of the Tolbukhin District Committee , Ambassador of Bulgaria to the German Democratic RepublicUnion for National Progress (UPRONA)Pasteur Nzinahora, vice chairman of the Political Commission of the Central CommitteeIldephonse Nkeramihigo, national secretaryCommunist Party of Canada (CPC)Gordon Massie, member of the Central Executive Committee and the Secretariat of the Central CommitteePaula Fletcher, Central Committee member, secretary of the party branch in ManitobaAfrican Party for the Independence of Cape Verde (PAICV)Olivio Pires, Politburo member and secretary of the Central CommitteeJorge Lopes, Head of the International Relations Department of the Central CommitteeCommunist Party of Chile (PCCh)Américo Zorrilla, Member of the Political Commission and the Secretariat of the Central CommitteeRadical Party (PR)Revolutionary Left Movement (MIR)Socialist Party (PS)Clodomiro Almeyda, General SecretaryHernán del Canto, Central Committee member and secretary for International RelationsColombian Communist Party (PCC)Jesús Villegas, Central Executive Committee member and secretary of the Central CommitteeBernardo Jaramillo Ossa, Central Committee memberCongolese Party of Labour (PCT)Jean Ganga-Zandzou, Politburo member, Speaker of the National AssemblyNorbert Ngouna, Central Committee member Justin Ballay Mégot, Ambassador of the People's Republic of the Congo to the German Democratic RepublicCosta Rican People's Party (PPC)Manuel Mora Salas, member of the Political Commission and the Secretariat of the Central CommitteeJosé Merino del Río, member of the Political CommissionPopular Vanguard Party (PVP), General SecretaryFrancisco Gamboa Guzmán, member of the Political CommissionCommunist Party of Cuba (PCC)José Ramón Machado Ventura, Politburo member and member of the Secretariat of the Central CommitteeMiguel Rodríguez Díaz, Central Committee candidate member and Second Secretary of the District Executive of Isla de la Juventud Ramiro del Río Pérez-Terán, Ambassador of Cuba to the German Democratic Republic Oscar Martinez Cordovés, official of the International Relations Department of the Central CommitteeProgressive Party of Working People (AKEL), Secretariat member, Politburo member and secretary of the Famagusta District Organization of the partyMichalis Olympios, Central Committee member and Deputy Head of the International Department of the partyCommunist Party of Czechoslovakia (KSČ)Vasil Biľak, Presidium member and secretary of the Central Committee, Central Committee member and secretary of the Party District Executive for Northern Bohemia Pavel Sadovsky, Ambassador of Czechoslovakia to the German Democratic RepublicCommunist Party of Denmark (DKP)Jørgen Jensen, ChairmanHarry Osborn, Central Committee memberDominican Communist Party (PCD)Carlos Ascuasiati, Politburo memberJulio Baez, Central Committee memberCommunist Party of Ecuador (PCE)Milton Jijón Saavedra, Member of the Executive Committee and secretary of the Central CommitteeEgyptian Communist PartyNational Progressive Unionist Party (Tagammu)Khaled Mohieddin, General SecretaryMohamed Refaat El-Saeed, secretary of the Central Committee.National Liberation Front Farabundo Martí (FMLN)Schafik Handal, member of High Command of FMLN, General Secretary of the Communist Party of El SalvadorJulio Rodríguez Jesús Vaquerano Rodrigo JiménezWorkers' Party of Ethiopia (WPE)Mengistu Haile Mariam, General Secretary, Chairman of the Provisional Military Administrative Council and Commander-in-Chief of the Revolutionary Armed ForcesAddis Tedla, Politburo member and Deputy Chairman of the National Committee for Central Planning Dr. Ashagre Yigletu, Secretary of the Central Committee and Head of the International Relations Department of the Central Committee Mengistu Gemetchu, Central Committee member and Head of the Office of the General Secretary Girma Beshah, candidate member of the Central Committee and Deputy Head of its International Relations Department Berhanu Jembere, Ambassador of Ethiopia to the German Democratic RepublicCommunist Party of Finland (SKP), Politburo member, Member of ParliamentFrench Communist Party (PCF)Maxime Gremetz, Politburo member and secretary of the Central CommitteeRaymond Jeanne, Central Committee member Lin Guillou, Central Committee memberSocialist Party (PS)Jacques Huntzinger, member of the Executive Bureau and the Leading CommitteeJean-Christophe Romer, In-charge of the Section for Socialist Countries in the International SecretariatProvisional National Defense Council (PNDC)Kojo Tsikata, Member of the Provisional National Defense CouncilKofi Djin, PNDC Secretary for Trade Kwame Sanaa-Poku Jantuah, Ambassador of Ghana to the German Democratic RepublicCommunist Party of Great Britain (CPGB)Peter Carter, member of the Political Committee of the Executive CommitteeHeather Malley, Executive Committee memberLabour PartyGeorge Robertson, Deputy Spokesperson on Foreign AffairsMaurice Bishop Patriotic Movement (MBPM)George Louison, Executive Committee memberCommunist Party of Greece (KKE), Politburo memberYannis Chotos, member of the Central Committee and the Thessaly District Leadership Betty Ambatielos, official of the International Relations Department of the Central CommitteePanhellenic Socialist Movement (PASOK)Dimitris Sotirlis, member of the Executive Bureau of the Central CommitteeRania Balafouta, Secretary for Central and Eastern Europe of the International Relations Area of the Central Committee Apostolos Gerontas, official of the International Relations Area of the Central CommitteeGuadeloupe Communist Party (PCG), General SecretaryMichel BancouGuatemalan National Revolutionary Unity (URNG)Guatemalan Party of Labour (PGT)Samuel Ramírez, Member of the Political Commission of the Central CommitteeAntonio García, candidate member of the Political Commission of the Central CommitteeAfrican Party for the Independence of Guinea and Cape Verde (PAIGC)Carmen Pereira, Politburo member, Speaker of the National AssemblyQuinto Cabi Naiana, Central Committee memberPeople's National CongressRanji Chandisingh, Deputy Chairman and General SecretaryPatrick Denny, head of the International Relations Department of the Central Administrative Committee.People's Progressive Party Clement Rohee, member of the Central Executive Committee, head of the International Relations DepartmentMichael Chan, member of the Central Executive Committee.Unified Party of Haitian Communists (PUCH)Max Bourjolly, Secretary of the Central CommitteeCommunist Party of Honduras (PCH), General SecretarySocialist Workers Party of Hungary (MSZMP)György Aczél, Politburo member and Director of the Institute of Social Sciences of the Central Committee , Central Committee member and General Director of the István Roska, Ambassador of Hungary to the German Democratic Republic.Communist Party of India (CPI), Central Secretariat memberLokanath Choudhary, National Council memberCommunist Party of India (Marxist) (CPI(M))E.M.S. Namboodiripad, General SecretarySitaram Yechuri, Central Committee memberIndian National Congress (INC)Mahendra Singh, All India Congress Committee member, Member of Parliament (Lok Sabha)Communist Party of Indonesia (PKI)Arab Socialist Ba'ath Party, member of the Regional CommandMalik Bashur, Member of the External Relations Bureau of the Regional Command