Organization Title Leader Country In office Ref African, Caribbean and Pacific Group of States (ACP) Secretary-general Patrick Gomes Guyana 2015–2020 [ 27] African Union Chairperson Idriss Déby Chad 2016–2017 [ 28] Chairperson of the Commission Nkosazana Dlamini-Zuma South Africa 2012–2017 [ 29] President of the Pan-African Parliament Roger Nkodo Dang Cameroon 2015–2021 [ 30] Andean Community Secretary-general Pablo Guzmán Laugier Bolivia 2013–2016 [ 31] Walker San Miguel 2016–2017 [ 32] [ 33] Arab League Secretary-general Nabil Elaraby Egypt 2011–2016 [ 34] Ahmed Aboul Gheit 2016–present [ 35] [ 36] Arab Maghreb Union Secretary-general Habib Ben Yahia Tunisia 2006–2016 [ 37] [ 38] Taïeb Baccouche 2016–present[ needs update ] [ 39] [ 40] Asia-Pacific Economic Cooperation (APEC) Executive director Alan Bollard New Zealand 2013–2018 [ 41] Association of Southeast Asian Nations (ASEAN) Secretary-general Lê Lương Minh Vietnam 2013–2017 [ 42] Caribbean Community Secretary-general Irwin LaRocque Dominica 2011–2021 [ 43] Central American Parliament President José Antonio Alvarado Correa Nicaragua 2015–2016 [ 44] Priscilla Weeden de Miró Panama 2016–2017 [ 45] Common Market of East and Southern Africa (COMESA) Secretary-general Sindiso Ngwenya Zimbabwe 2008–2018 [ 46] [ 47] Commonwealth of Nations Head Queen Elizabeth II United Kingdom 1952–present [ 48] [ 49] Secretary-general Kamalesh Sharma India 2008–2016 [ 50] Patricia Scotland United Kingdom 2016–present [ 51] Commonwealth of Independent States Executive secretary Sergei Lebedev Russia 2007–present [ 52] [ 53] Council of Europe Secretary General Thorbjørn Jagland Norway 2009–2019 [ 54] [ 55] President of the Parliamentary Assembly of the Council of Europe (PACE) Anne Brasseur Luxembourg 2014–2016 [ 56] Pedro Agramunt Spain 2016–2017 [ 57] President of the European Court of Human Rights Guido Raimondi Italy 2015–2019 [ 58] East African Community Secretary-general Richard Sezibera Rwanda 2011–2016 [ 59] Libérat Mfumukeko Burundi 2015–2021 [ 60] Chairman John Magufuli Tanzania 2015–2017 [ 61] Economic Community of West African States (ECOWAS) President of the Commission Kadré Désiré Ouédraogo Burkina Faso 2012–2016 [ 62] Marcel Alain de Souza Benin 2016–2018 [ 63] Chairman Macky Sall Senegal 2015–2016 [ 64] [ 65] Ellen Johnson Sirleaf Liberia 2016–2017 [ 65] [ 66] European Free Trade Association Secretary-general Kristinn F. Árnason Iceland 2012–2018 [ 67] European Union (EU) Presidency of the European Council Donald Tusk Poland 2014–2019 [ 68] Presidency of the Council of the European Union Netherlands 2016 [ 69] Slovakia [ 69] President of the European Commission Jean-Claude Juncker Luxembourg 2014–2019 [ 70] President of the European Parliament Martin Schulz Germany 2012–2017 [ 71] Secretary-General of the Council and High Representative for the Common Foreign and Security Policy Federica Mogherini Italy 2014–2019 [ 72] President of the European Central Bank Mario Draghi 2011–2019 [ 73] European Ombudsman Emily O'Reilly Ireland 2013–present[ needs update ] [ 74] President of the Committee of the Regions (CoR) Markku Markkula Finland 2015–2017 [ 75] President of the European Investment Bank (EIB) Werner Hoyer Germany 2012–present [ 76] [ 77] President of the European Court of Justice (ECJ) Koen Lenaerts Belgium 2015–present[ needs update ] [ 78] President of the European Court of Auditors (ECA) Vítor Manuel da Silva Caldeira Portugal 2008–2017 [ 79] President of the European Economic and Social Committee (EESC) Georges Dassis Greece 2015–2018 [ 80] Group of Seven (G7) (Russia suspended from G8 in 2014) President (informal) Japan 2016 [ 81] Gulf Cooperation Council Secretary-general Abdullatif bin Rashid Al Zayani Bahrain 2011–2020 [ 82] Ibero-American General Secretariat (SEGIB) Secretary-general Rebeca Grynspan Costa Rica 2014–2021 [ 83] Indian Ocean Commission Secretary-general Jean Claude de l'Estrac Mauritius 2012–2016 [ 84] Hamada Madi Comoros 2016–2020 [ 85] Eurasian Economic Union Chairman Kazakhstan 2016 [ citation needed ] Non-Aligned Movement (NAM) Chairman Hassan Rouhani Iran 2013–2016 [ 86] Nicolás Maduro Venezuela 2016–2019 [ 87] Nordic Council President Henrik Dam Kristensen Denmark 2016 [ 88] Secretary-general Britt Bohlin Sweden 2014–2021 [ 89] North Atlantic Treaty Organization (NATO) Secretary-general Jens Stoltenberg Norway 2014–present[ needs update ] [ 90] [ 91] Organisation for Economic Co-operation and Development (OECD) Secretary-general José Ángel Gurría Mexico 2006–2021 [ 92] Organization for Security and Co-operation in Europe (OSCE) Secretary-general Lamberto Zannier Italy 2011–2017 [ 93] Chairman-in-Office Frank-Walter Steinmeier Serbia 2016 [ 94] High Commissioner on National Minorities Astrid Thors Finland 2013–2016 [ 95] Organisation of Eastern Caribbean States Director-general Didacus Jules Saint Lucia 2014–present[ needs update ] [ 96] [ 97] Organisation of Islamic Cooperation (OIC) Secretary-general Iyad bin Amin Madani Saudi Arabia 2014–2016 [ 98] Yousef Al-Othaimeen 2016–2020 [ 99] Pacific Community (SPC) Director-general Colin Tukuitonga Niue 2014–2020 [ 100] Pacific Islands Forum Secretary-general Meg Taylor Papua New Guinea 2014–2021 [ 101] Shanghai Cooperation Organisation (SCO) Secretary-general Rashid Alimov Tajikistan 2016–2018 [ 102] South Asian Association for Regional Cooperation (SAARC) Secretary-general Arjun Bahadur Thapa Nepal 2014–2017 [ 103] Southern Cone Common Market (Mercosur) Director of the Executive Secretariat Oscar Pastore Paraguay 2014–2016 [ 104] Southern African Development Community (SADC) Executive secretary Stergomena Tax Tanzania 2013–2021 [ 105] Union of South American Nations (UNASUR) President Tabaré Vázquez Uruguay 2015–2016 [ 106] Nicolás Maduro Venezuela 2016–2017 [ 107] Secretary-general Ernesto Samper Colombia 2014–2017 [ 108] Unrepresented Nations and Peoples Organization (UNPO) Secretary-general Marino Busdachin Italy 2003–2018 [ citation needed ] World Trade Organization (WTO) Director-general Roberto Azevêdo Brazil 2013–2020 [ 109]