# | Nama | Periode Jabatan | Sekjen PBB | Presiden AS |
1 | Edward R. Stettinius, Jr. | 1945–1946 | Sir Gladwyn Jebb, Trygve Lie | Harry S. Truman |
— | Herschel V. Johnson (pejabat) | 1946–1947 | Trygve Lie | Harry S. Truman |
2 | Warren R. Austin | 1947–1953 | Trygve Lie, Dag Hammarskjöld | Harry S. Truman |
3 | Henry Cabot Lodge, Jr. | 1953–1960 | Dag Hammarskjöld | Dwight D. Eisenhower |
4 | James J. Wadsworth | 1960–1961 | Dag Hammarskjöld | Dwight D. Eisenhower |
5 | Adlai Stevenson | 1961–1965 | Dag Hammarskjöld, U Thant | John F. Kennedy, Lyndon B. Johnson |
6 | Arthur J. Goldberg | 1965–1968 | U Thant | Lyndon B. Johnson |
7 | George W. Ball | 1968 | U Thant | Lyndon B. Johnson |
8 | James Russell Wiggins | 1968–1969 | U Thant | Lyndon B. Johnson |
9 | Charles W. Yost | 1969–1971 | U Thant | Richard Nixon |
10 | George H. W. Bush | 1971–1973 | U Thant, Kurt Waldheim | Richard Nixon |
11 | John A. Scali | 1973–1975 | Kurt Waldheim | Richard Nixon, Gerald Ford |
12 | Daniel Patrick Moynihan | 1975–1976 | Kurt Waldheim | Gerald Ford |
13 | William Scranton | 1976–1977 | Kurt Waldheim | Gerald Ford |
14 | Andrew Young | 1977–1979 | Kurt Waldheim | Jimmy Carter |
15 | Donald McHenry | 1979–1981 | Kurt Waldheim | Jimmy Carter |
16 | Jeane Kirkpatrick | 1981–1985 | Kurt Waldheim, Javier Pérez de Cuéllar | Ronald Reagan |
17 | Vernon A. Walters | 1985–1989 | Javier Pérez de Cuéllar | Ronald Reagan |
18 | Thomas R. Pickering | 1989–1992 | Javier Pérez de Cuéllar, Boutros Boutros-Ghali | George H. W. Bush |
19 | Edward J. Perkins | 1992–1993 | Boutros Boutros-Ghali | George H. W. Bush |
20 | Madeleine Albright | 1993–1997 | Boutros Boutros-Ghali, Kofi Annan | Bill Clinton |
21 | Bill Richardson | 1997–1998 | Kofi Annan | Bill Clinton |
— | Albert Peter Burleigh (acting) | 1998–1999 | Kofi Annan | Bill Clinton |
22 | Richard Holbrooke | 1999–2001 | Kofi Annan | Bill Clinton |
— | James B. Cunningham (pejabat) | 2001 | Kofi Annan | George W. Bush |
23 | John D. Negroponte | 2001–2004 | Kofi Annan | George W. Bush |
24 | John Danforth | 2004–2005 | Kofi Annan | George W. Bush |
— | Anne W. Patterson (pejabat) | 2005 | Kofi Annan | George W. Bush |
25 | John R. Bolton | 2005–2006 | Kofi Annan | George W. Bush |
— | Alejandro Daniel Wolff (pejabat) | 2006–2007 | Kofi Annan, Ban Ki-moon | George W. Bush |
26 | Zalmay Khalilzad | 2007–2009 | Ban Ki-Moon | George W. Bush |
27 | Susan Rice | 2009–2013 | Ban Ki-Moon | Barack Obama |
— | Rosemary DiCarlo Penjabat | 30 Juni 2013 – 5 Agustus 2013 | Ban Ki-Moon | Barack Obama |
28 | Samantha Power | 5 Agustus 2013 – 20 Januari 2017 | Ban Ki-Moon, António Guterres | Barack Obama |
— | Michele J. Sison Penjabat | 20 Januari 2017 – 27 Januari 2017 | António Guterres | Donald Trump |
29 | Nikki Haley | 27 Januari 2017 − 31 Desember 2018 | António Guterres |
— | Jonathan Cohen Penjabat | 1 Januari 2019 - 12 September 2019 | António Guterres |
30 | Kelly Craft | 12 September 2019 - 20 Januari 2021 | António Guterres |
— | Richard M. Mills Jr. | 20 Januari 2021 - 25 Februari 2021 | António Guterres | Joe Biden |
31 | Linda Thomas-Greenfield | 25 Februari 2021 - Petahana | António Guterres |