| John Weston | 1 January 2001 - 28 February 2007 |
| Narendra Modi | 1 January 2002 - 16 May 2014 |
| Pascal Couchepin | 1 January 2002 - 31 December 2002 |
| Michael Cardozo | 1 January 2002 - December 31, 2013 |
| Pascal Couchepin | 1 January 2003 - 1 November 2009 |
| Marina Silva | 1 January 2003 - 13 May 2008 |
| Dora Bakoyannis | 1 January 2003 - 14 February 2006 |
| Pascal Couchepin | 1 January 2003 - 31 December 2003 |
| Ruth Metzler | 1 January 2003 - 31 December 2003 |
| Lars Heikensten | 1 January 2003 - 31 December 2005 |
| Luiz Inácio Lula da Silva | 1 January 2003 - 31 December 2010 |
| Christoph Blocher | 1 January 2004 - 31 December 2007 |
| Christoph Blocher | 1 January 2004 - 31 December 2007 |
| Ian Blair | 1 January 2005 - 1 December 2008 |
| Glenis Willmott | 1 January 2006 - 3 October 2017 |
| Ritt Bjerregaard | 1 January 2006 - 31 December 2009 |
| Stefan Ingves | 1 January 2006 - Present |
| Pascal Couchepin | 1 January 2007 - 31 December 2007 |
| Brian Leveson | 1 January 2007 - 31 December 2009 |
| Martin Moore-Bick | 1 January 2007 - 31 December 2012 |
| Ban Ki-moon | 1 January 2007 - 31 December 2016 |
| Marcus Agius | 1 January 2007 - Present |
| Vladimir Putin | 1 January 2008 - 30 May 2012 |
| Pascal Couchepin | 1 January 2008 - 31 December 2008 |
| John Fahey | 1 January 2008 - 31 December 2013 |
| Kim Beazley | 1 January 2009 |
| Thorbjørn Jagland | 1 January 2009 - 3 March 2015 |
| Doris Leuthard | 1 January 2009 - 31 December 2009 |
| Thomas Buberl | 1 January 2009 - 2012 |
| Agustín Carstens | 1 January 2010 - 30 November 2017 |
| Carl-Henric Svanberg | 1 January 2010 - 2018 |
| Len McCluskey | 1 January 2011 - 26 August 2021 |
| Michel Temer | 1 January 2011 - 31 August 2016 |
| Dilma Rousseff | 1 January 2011 - 31 August 2016 |
| Andrew Murray | 1 January 2011 - Present |
| Øystein Olsen | 1 January 2011 - Present |
| Jeremy Heywood | 1 January 2012 - 24 October 2018 |
| Jörg Asmussen | 1 January 2012 - 27 January 2014 |
| Berit Reiss-Andersen | 1 January 2012 - 31 December 2017 |
| Benoît Cœuré | 1 January 2012 - 31 December 2019 |
| Bob Kerslake | 1 January 2012 - 5 July 2014 |
| José Graziano da Silva | 1 January 2012 - Present |
| Brian Gilvary | 1 January 2012 - Present |
| Brian Gilvary | 1 January 2012 - Present |
| Zachary Carter | 1 January 2014 - August 31, 2019 |
| Frédéric Oudéa | 1 January 2015 - 1 January 2017 |
| Joaquim Levy | 1 January 2015 - 21 December 2015 |
| Johann Schneider-Ammann | 1 January 2015 - 31 December 2015 |
| Doris Leuthard | 1 January 2016 - 1 January 2017 |
| Johann Schneider-Ammann | 1 January 2016 - 31 December 2016 |
| Ian Dyson | 1 January 2016 - Present |
| Ueli Maurer | 1 January 2016 - Present |
| Oliver Haarman | 1 January 2016 - Present |
| Filippo Grandi | 1 January 2016 - Present |
| Fabiola Gianotti | 1 January 2016 - 2025 |
| Doris Leuthard | 1 January 2017 - 31 December 2017 |
| Patrick Vallance | 1 January 2017 - 31 March 2018 |
| António Guterres | 1 January 2017 - Present |
| Günther Oettinger | 1 January 2017 - Present |
| Stephen House | 1 January 2018 - 1 December 2018 |
| Andrew Feldman | 1 January 2018 - 30 April 2019 |
| Ueli Maurer | 1 January 2018 - 31 December 2018 |
| Eamonn Brennan | 1 January 2018 - Present |
| Luiz Henrique Mandetta | 1 January 2019 - 16 April 2020 |
| Ernesto Araújo | 1 January 2019 - 29 March 2021 |
| Ueli Maurer | 1 January 2019 - Present |
| Jair Bolsonaro | 1 January 2019 - Present |
| Mariot Leslie | 1 January 2019 - Present |
| Jonathan Cohen | 1 January 2019 - September 12, 2019 |
| Olivier Duhamel | 1 January 2020 - 4 January 2021 |
| Julie Bishop | 1 January 2020 - Present |
| James Slack | 1 January 2021 - 19 March 2021 |
| Dan Rosenfield | 1 January 2021 - 5 February 2022 |
| Ignazio Cassis | 1 January 2022 - 31 December 2022 |
| Shumeet Banerji | 1 January 2022 - Present |
| Marina Silva | 1 January 2023 - Present |
| Nísia Trindade | 1 January 2023 - Present |
| Shirley Williams | 1 Jul 1997 - 31 Mar 2002 |
| Otto von Bismarck | 1 July 1867 - 21 March 1871 |
| Frederick Marquis | 1 July 1946 - 1 November 1955 |
| Walter Scheel | 1 July 1956 - 20 November 1961 |
| Antonio Segni | 1 July 1958 - 15 February 1959 |
| Amintore Fanfani | 1 July 1958 - 15 February 1959 |
| Giulio Andreotti | 1 July 1958 - 15 February 1959 |
| Amintore Fanfani | 1 July 1958 - 15 February 1959 |
| Antonio Segni | 1 July 1958 - 15 February 1959 |
| Kwame Nkrumah | 1 July 1960 - 24 February 1966 |
| Lionel Murphy | 1 July 1962 - 9 February 1975 |
| Eugenio Henke | 1 July 1966 - 18 October 1970 |
| Theunis Willem de Jongh | 1 July 1967 - 31 December 1980 |
| John Stonehouse | 1 July 1968 - 1 October 1969 |
| Yigal Allon | 1 July 1968 - 10 March 1974 |
| Roy Mason | 1 July 1968 - 6 October 1969 |
| Andrew Goodpaster | 1 July 1969 - 15 December 1974 |
| Franco Malfatti | 1 July 1970 - 1 March 1972 |
| Altiero Spinelli | 1 July 1970 - 4 July 1976 |
| Gro Harlem Brundtland | 1 July 1974 - 19 March 1979 |
| Walter Scheel | 1 July 1974 - 30 June 1979 |
| Walter Scheel | 1 July 1974 - 30 June 1979 |
| Garret Fitzgerald | 1 July 1977 - 10 March 1987 |
| Frank Cluskey | 1 July 1977 - 12 June 1981 |
| Frank Cluskey | 1 July 1977 - 12 June 1981 |
| Morarji Desai | 1 July 1978 - 24 January 1979 |
| Anker Jørgensen | 1 July 1978 - 30 August 1978 |
| Agostino Casaroli | 1 July 1979 - 1 December 1990 |
| Jacques Delors | 1 July 1979 - 25 May 1981 |
| Karl Carstens | 1 July 1979 - 30 June 1984 |
| Robert M. Hill | 1 July 1981 - 15 March 2006 |
| J. William Middendorf | 1 July 1981 - 20 June 1985 |
| William McMahon | 1 July 1981 - 4 January 1982 |
| Max van der Stoel | 1 July 1983 - 1 August 1986 |
| Richard von Weizsacker | 1 July 1984 - 30 June 1994 |
| Louis Pienaar | 1 July 1985 - 21 March 1990 |
| Bernt Carlsson | 1 July 1987 - 21 December 1988 |
| Bernt Carlsson | 1 July 1987 - 21 December 1988 |
| Stephen Loosley | 1 July 1990 - 19 May 1995 |
| George Yeo | 1 July 1991 - 2 June 1999 |
| Peter Sutherland | 1 July 1993 - 1 May 1995 |
| Massimo D'Alema | 1 July 1994 - 12 February 1998 |
| Judith Rodin | 1 July 1994 - 30 June 2004 |
| Peter Sutherland | 1 July 1995 - 1 May 2015 |
| James Wolfensohn | 1 July 1995 - 30 June 2005 |
| Harriet Harman | 1 July 1996 - 2 May 1997 |
| Wim Duisenberg | 1 July 1997 - 1 July 1998 |
| Nout Wellink | 1 July 1997 - 1 July 2011 |
| Francis Cornish | 1 July 1997 - November 1997 |
| Otmar Issing | 1 July 1998 - 1 June 2006 |
| Wim Duisenberg | 1 July 1998 - 1 November 2003 |
| David Trimble | 1 July 1998 - 14 October 2002 |
| Christian Noyer | 1 July 1998 - 29 May 2002 |
| Mark Malloch Brown | 1 July 1999 - 15 August 2005 |
| Lee Myung-bak | 1 July 2002 - 30 June 2006 |
| Jeremy Greenstock | 1 July 2002 - 31 July 2002 |
| Penny Wong | 1 July 2002 - Present |
| Mervyn King | 1 July 2003 - 1 July 2013 |
| Rachel Lomax | 1 July 2003 - 30 June 2008 |
| Inocencio F. Arias | 1 July 2003 - 31 July 2003 |
| Jean-Marie Le Pen | 1 July 2004 - 10 April 2003 |
| Louise Arbour | 1 July 2004 - 31 August 2008 |
| Horst Köhler | 1 July 2004 - 31 May 2010 |
| Jean-Marie Le Pen | 1 July 2004 - Present |
| Indira Samarasekera | 1 July 2005 - 30 June 2015 |
| Barnaby Joyce | 1 July 2005 - 8 August 2013 |
| Gordon Bajnai | 1 July 2007 - 14 May 2008 |
| David Cairns | 1 July 2007 - 16 September 2008 |
| Sarah Hanson-Young | 1 July 2008 - Present |
| Alicia Bárcena Ibarra | 1 July 2008 - Present |
| Guy Verhofstadt | 1 July 2009 - 1 July 2019 |
| Nigel Farage | 1 July 2009 - 24 June 2014 |
| Paulo Rangel | 1 July 2009 - Present |
| Monika Hohlmeier | 1 July 2009 - Present |
| Ska Keller | 1 July 2009 - Present |
| Marietje Schaake | 1 July 2009 - 2019 |
| Carles Puigdemont | 1 July 2011 - 11 January 2016 |
| Klaas Knot | 1 July 2011 - Present |
| Jim Yong Kim | 1 July 2012 - 1 February 2019 |
| Jan Eliasson | 1 July 2012 - 31 December 2016 |
| Peter Maurer | 1 July 2012 - September 2022 |
| Mark Carney | 1 July 2013 - 15 March 2020 |
| Willem Baralt | 1 July 2014 - 1 July 2018 |
| Andrzej Duda | 1 July 2014 - 12 June 2015 |
| Elly Schlein | 1 July 2014 - 2 July 2019 |
| Johannes Jansen | 1 July 2014 - 5 May 2015 |
| Kaja Kallas | 1 July 2014 - 5 September 2018 |
| Anneliese Dodds | 1 July 2014 - 8 June 2017 |
| Antonio Tajani | 1 July 2014 - 8 May 2008 |
| Jonathan Marland | 1 July 2014 - Present |
| Barbara Spinelli | 1 July 2014 - Present |
| Viviane Reding | 1 July 2014 - Present |
| Antonio Tajani | 1 July 2014 - Present |
| Eva Maydell | 1 July 2014 - Present |
| Brando Benifei | 1 July 2014 - Present |
| Esteban Gonzáles Pons | 1 July 2014 - Present |
| Jack Dorsey | 1 July 2015 - 29 November 2021 |
| Dave Anderson | 1 July 2016 - 14 June 2017 |
| Angela Rayner | 1 July 2016 - 4 April 2020 |
| Bruno Kahl | 1 July 2016 - Present |
| Tedros Ghebreyesus | 1 July 2017 - Present |
| Andrew Bragg | 1 July 2019 - Present |
| Thomas Byrne | 1 July 2020 - Present |
| Kim Leadbeater | 1 July 2021 - Present |
| Minouche Shafik | 1 July 2023 - Present |
| Giulio Andreotti | 1 June 1947 - 18 January 1954 |
| Luigi Einaudi | 1 June 1947 - 24 May 1948 |
| Raymond Evershed | 1 June 1949 - 19 April 1962 |
| Antoine Pinay | 1 June 1958 - 13 January 1960 |
| Pierre Guillaumat | 1 June 1958 - 5 February 1960 |
| Charles de Gaulle | 1 June 1958 - 8 January 1959 |
| Charles de Gaulle | 1 June 1958 - 8 January 1959 |
| Jan Petersen | 1 June 1971 - 1 June 1973 |
| Otmar Emminger | 1 June 1977 - 31 December 1979 |
| Trygve Bratteli | 1 June 1978 - 17 September 1978 |
| Oliver Revell | 1 June 1980 - 31 August 1994 |
| Dominique Baudis | 1 June 1988 - 24 January 2001 |
| Gianni Agnelli | 1 June 1991 - 24 January 2003 |
| Anatoly Chubais | 1 June 1992 - 5 November 1994 |
| David Willetts | 1 June 1998 - 15 June 1999 |
| Liam Fox | 1 June 1998 - 15 June 1999 |
| George Young | 1 June 1998 - 26 September 2000 |
| George Young | 1 June 1998 - 26 September 2000 |
| Walter Veltroni | 1 June 2001 - 13 February 2008 |
| Ellen Margrethe Løj | 1 June 2006 - 30 June 2006 |
| Ángel Gurría | 1 June 2006 - 31 May 2021 |
| Patrick Divedjian | 1 June 2007 - 28 March 2020 |
| Reinhard Bütikofer | 1 June 2009 - Present |
| Vitor Constancio | 1 June 2010 - 31 May 2018 |
| Pierre Wunsch | 1 June 2011 - 1 January 2019 |
| Pierre Maudet | 1 June 2011 - 31 May 2012 |
| Alistair Darling | 1 June 2012 - 19 September 2014 |
| Colin Boyd | 1 June 2012 - Present |
| Benoît Potier | 1 June 2014 - 28 May 2018 |
| Lila Tretikov | 1 June 2014 - March 2016 |
| Katharine Viner | 1 June 2015 - Present |
| James Wolffe | 1 June 2016 - 21 June 2021 |
| Alison Di Rollo | 1 June 2016 - June 2021 |
| Suh Hoon | 1 June 2017 - 2020 |
| Giuseppe Conte | 1 June 2018 - 13 February 2021 |
| Paolo Savona | 1 June 2018 - 8 March 2019 |
| Luis de Guindos | 1 June 2018 - Present |
| Philip Lane | 1 June 2019 - Present |
| Strive Masiyiwa | 1 June 2020 - Present |
| Dolf van den Brink | 1 June 2020 - Present |
| Mathias Cormann | 1 June 2021 - Present |
| Clare O'Neil | 1 June 2022 - Present |
| Anne Aly | 1 June 2022 - Present |
| Anne Aly | 1 June 2022 - Present |
| Richard Marles | 1 June 2022 - Present |
| Willi Krichbaum | 1 March 1941 - May 1945 |
| Herman van Roijen | 1 March 1946 - 3 July 1946 |
| Giles Radice | 1 March 1973 - 7 June 2001 |
| Bruce George | 1 March 1974 - 12 April 2010 |
| Muhammad Zia-ul-Haq | 1 March 1976 - 17 August 1988 |
| David Waddington | 1 March 1979 - 9 June 1983 |
| Bill Hayden | 1 March 1983 - 17 August 1988 |
| Bill Hayden | 1 March 1983 - 17 August 1988 |
| Tony Benn | 1 March 1984 - 7 June 2001 |
| Michael Tetzschner | 1 March 1989 - 1 January 1992 |
| Cyril Ramaphosa | 1 March 1991 - 18 December 1997 |
| Martti Ahtisaari | 1 March 1994 - 1 March 2000 |
| Lajos Bokros | 1 March 1995 - 29 February 1996 |
| Péter Medgyessy | 1 March 1996 - 8 July 1998 |
| Annegret Kramp-Karrenbauer | 1 March 1998 - Present |
| Urban Bäckström | 1 March 1999 - 28 February 2002 |
| Tarja Halonen | 1 March 2000 - 1 March 2012 |
| Hans Blix | 1 March 2000 - 30 June 2003 |
| Nout Wellink | 1 March 2002 - 2006 |
| David Irvine | 1 March 2003 - 27 March 2009 |
| Shukri Ghanem | 1 March 2006 - 16 May 2011 |
| Ad Melkert | 1 March 2006 - 7 July 2009 |
| Gilles de Kerchove | 1 March 2007 - Present |
