Principal Officers and Chiefs of Mission, by Name: G

Note: Career Foreign Service appointees are asterisked.

• Edward M. Gabriel (1950–)
  • Ambassador Extraordinary and Plenipotentiary, Morocco (1997–2001)
• James Gadsden (1788–1858)
  • Envoy Extraordinary and Minister Plenipotentiary, Mexico (1853–1856)
• *James Irvin Gadsden (1948–)
  • Ambassador Extraordinary and Plenipotentiary, Iceland (2002–2005)
• Henry Tifft Gage (1852–1938)
  • Envoy Extraordinary and Minister Plenipotentiary, Portugal (1909–1910)
• *Adrienne Galanek (?–)
  • Chargé d’Affaires ad interim, Belize (2018)
• Evan Griffith Galbraith (1928–2008)
  • Ambassador Extraordinary and Plenipotentiary, France (1981–1985)
• *Francis Joseph Galbraith (1913–1986)
  • Ambassador Extraordinary and Plenipotentiary, Singapore (1966–1969)
  • Ambassador Extraordinary and Plenipotentiary, Indonesia (1969–1974)
• John Kenneth Galbraith (1908–2006)
  • Ambassador Extraordinary and Plenipotentiary, India (1961–1963)
• Peter W. Galbraith (1950–)
  • Ambassador Extraordinary and Plenipotentiary, Croatia (1993–1998)
• Albert Gallatin (1761–1849)
  • Envoy Extraordinary and Minister Plenipotentiary, France (1815–1823)
  • Envoy Extraordinary and Minister Plenipotentiary, United Kingdom (1826–1827)
• *Gonzalo Rolando Gallegos (1963–)
  • Chargé d’Affaires ad interim, Costa Rica (2015)
• *Waldemar John Gallman (1899–1980)
  • Ambassador Extraordinary and Plenipotentiary, Poland (1948–1950)
  • Ambassador Extraordinary and Plenipotentiary, South Africa (1951–1954)
  • Ambassador Extraordinary and Plenipotentiary, Iraq (1954–1958)
  • Director General of the Foreign Service (1958–1961)
• *Gerard M. Gallucci (1951–)
  • Chargé d’Affaires, Sudan (2004)
• Robert L. Gallucci (1946–)
  • Assistant Secretary of State for Politico-Military Affairs (1992–1994)
  • Ambassador at Large (1994–1996)
• *Jennifer Zimdahl Galt (1959–)
  • Ambassador Extraordinary and Plenipotentiary, Mongolia (2015–2017)
• *Roger Gamble (1932–)
  • Ambassador Extraordinary and Plenipotentiary, Suriname (1993–1996)
• *Samuel Rhea Gammon III (1924–)
  • Ambassador Extraordinary and Plenipotentiary, Mauritius (1978–1980)
• *James Watson Gantenbein (1900–1960)
  • Chargé d’Affaires ad interim, Romania (1952)
• *Judith Gail Garber (1961–)
  • Ambassador Extraordinary and Plenipotentiary, Latvia (2009–2012)
  • Ambassador Extraordinary and Plenipotentiary, Cyprus (2019)
• Anthony Luzzatto Gardner (1963–)
  • Representative of the U.S.A. to the European Union, with the rank and status of Ambassador Extraordinary and Plenipotentiary (2014–2017)
• Arthur Gardner (1889–1967)
  • Ambassador Extraordinary and Plenipotentiary, Cuba (1953–1957)
• Oliver Maxwell Gardner (1882–1947)
  • Ambassador Extraordinary and Plenipotentiary, United Kingdom (1946)
• *Paul Fisher Gardner (1930–)
  • Ambassador Extraordinary and Plenipotentiary, Papua New Guinea (1984–1986)
  • Ambassador Extraordinary and Plenipotentiary, Solomon Islands (1984–1986)
• Richard Newton Gardner (1927–)
  • Ambassador Extraordinary and Plenipotentiary, Italy (1977–1981)
  • Ambassador Extraordinary and Plenipotentiary, Spain (1993–1997)
• Charles A. Gargano (1934–)
  • Ambassador Extraordinary and Plenipotentiary, Trinidad and Tobago (1988–1991)
  • Ambassador Extraordinary and Plenipotentiary, Austria (Nomination of November 7, 2007, withdrawn March 13, 2008.)
• Henry Highland Garnet (1815–1882)
  • Minister Resident/Consul General, Liberia (1881–1882)
• George Angus Garrett (1888–1971)
  • Envoy Extraordinary and Minister Plenipotentiary, Ireland (1947–1950)
  • Ambassador Extraordinary and Plenipotentiary, Ireland (1950–1951)
• John Work Garrett (1872–1942)
  • Envoy Extraordinary and Minister Plenipotentiary, Venezuela (1910–1911)
  • Envoy Extraordinary and Minister Plenipotentiary, Argentina (1911–1913)
  • Envoy Extraordinary and Minister Plenipotentiary, Luxembourg (1917–1919)
  • Envoy Extraordinary and Minister Plenipotentiary, Netherlands (1917–1919)
  • Ambassador Extraordinary and Plenipotentiary, Italy (1929–1933)
• *Raymond Leonard Garthoff (1929–)
  • Ambassador Extraordinary and Plenipotentiary, Bulgaria (1977–1979)
• *William J. Garvelink (1949–)
  • Ambassador Extraordinary and Plenipotentiary, Congo (Kinshasa) (2007–2010)
• *Janet E. Garvey (1953–)
  • Ambassador Extraordinary and Plenipotentiary, Cameroon (2007–2010)
• Hampson Gary (1873–1952)
  • Agent/Consul General, Egypt (1917–1919)
  • Envoy Extraordinary and Minister Plenipotentiary, Switzerland (1920–1921)
• Antonio O. Garza Jr. (1957–)
  • Ambassador Extraordinary and Plenipotentiary, Mexico (2002–2009)
• *Oliver P. Garza (1941–)
  • Chargé d’Affaires ad interim, Panama (1995)
  • Ambassador Extraordinary and Plenipotentiary, Nicaragua (1999–2002)
• Patrick Hubert Gaspard (1967–)
  • Ambassador Extraordinary and Plenipotentiary, South Africa (2013–2016)
• *John Newton Gatch Jr. (1921–1992)
  • Chargé d’Affaires ad interim, Bahrain ()
• Thomas Sovereign Gates Jr. (1906–1983)
  • Chief, China (1976–1977)
• Toby Trister Gati (1946–)
  • Assistant Secretary of State for Intelligence and Research (1993–1997)
• William Steen Gaud (1907–1977)
  • Administrator of the Agency for International Development (1966–1969)
• *Clarence Edward Gauss (1886–1960)
  • Envoy Extraordinary and Minister Plenipotentiary, Australia (1940–1941)
  • Ambassador Extraordinary and Plenipotentiary, China (1941–1944)
• James Maurice Gavin (1907–1990)
  • Ambassador Extraordinary and Plenipotentiary, France (1961–1962)
• John A. Gavin (1931–2018)
  • Ambassador Extraordinary and Plenipotentiary, Mexico (1981–1986)
• Michelle D. Gavin (1973–)
  • Ambassador Extraordinary and Plenipotentiary, Botswana (2011–2014)
• *Stephen Gurney Gebelt (1922–1977)
  • Chargé d’Affaires ad interim, Lesotho (1970)
• *Harold W. Geisel (1947–)
  • Ambassador Extraordinary and Plenipotentiary, Comoros (1996–1999)
  • Ambassador Extraordinary and Plenipotentiary, Mauritius (1996–1999)
  • Ambassador Extraordinary and Plenipotentiary, Seychelles (1996–1999)
• Arthur H. Geissler (1877–1945)
  • Envoy Extraordinary and Minister Plenipotentiary, Guatemala (1922–1930)
  • Envoy Extraordinary and Minister Plenipotentiary, Thailand (1929)
• Bruce S. Gelb (1927–)
  • Director of the U.S. Information Agency (1989–1991)
  • Ambassador Extraordinary and Plenipotentiary, Belgium (1991–1993)
• Leslie Howard Gelb (1937–)
  • Assistant Secretary of State for Politico-Military Affairs (1977–1979)
• *Robert S. Gelbard (1944–)
  • Ambassador Extraordinary and Plenipotentiary, Bolivia (1988–1991)
  • Assistant Secretary of State for International Narcotics and Law Enforcement Affairs (1993–1997)
  • Ambassador Extraordinary and Plenipotentiary, Indonesia (1999–2001)
• *Herbert Donald Gelber (1942–)
  • Ambassador Extraordinary and Plenipotentiary, Mali (1990–1993)
• Andrew M. Gellert (?–)
  • Ambassador Extraordinary and Plenipotentiary, Chile (Nomination of January 8, 2018 withdrawn on August 16, 2018.)
• Kenneth S. George (?–)
  • Ambassador Extraordinary and Plenipotentiary, Uruguay (2019)
• James Watson Gerard III (1867–1951)
  • Ambassador Extraordinary and Plenipotentiary, Germany (1913–1917)
• Jean Broward Shevlin Gerard (1938–1996)
  • U.S. Permanent Representative to the United Nations Educational, Scientific and Cultural Organization (1981–1984)
  • Ambassador Extraordinary and Plenipotentiary, Luxembourg (1985–1990)
• Sumner Gerard (1916–2005)
  • Ambassador Extraordinary and Plenipotentiary, Jamaica (1974–1977)
• *Robert Saul Gershenson (1928–2012)
  • Ambassador Extraordinary and Plenipotentiary, Uruguay (Nomination of July 10, 1980, not acted upon by the Senate.)
• *John Ives Getz (1917–2003)
  • Ambassador Extraordinary and Plenipotentiary, Malta (1972–1974)
• Don Lee Gevirtz (1928–2001)
  • Ambassador Extraordinary and Plenipotentiary, Fiji (1995–1997)
  • Ambassador Extraordinary and Plenipotentiary, Nauru (1995–1997)
  • Ambassador Extraordinary and Plenipotentiary, Tonga (1995–1997)
  • Ambassador Extraordinary and Plenipotentiary, Tuvalu (1995–1997)
• *Thomas Howard Gewecke (1944–)
  • Chargé d’Affaires ad interim, Netherlands (1993)
• *Tatiana C. Gfoeller-Volkoff (1960–)
  • Ambassador Extraordinary and Plenipotentiary, Kyrgyzstan (2008–2011)
• *Yousif Boutros Ghafari (1952–)
  • Ambassador Extraordinary and Plenipotentiary, Slovenia (2008–2009)
• Joseph Ghougassian (1944–)
  • Ambassador Extraordinary and Plenipotentiary, Qatar (1985–1989)
• Richard Gibbs (1819–1894)
  • Envoy Extraordinary and Minister Plenipotentiary, Peru (1875–1879)
  • Minister Resident/Consul General, Bolivia (1883–1885)
• *Hugh Simons Gibson (1883–1954)
  • Envoy Extraordinary and Minister Plenipotentiary, Poland (1919–1924)
  • Envoy Extraordinary and Minister Plenipotentiary, Switzerland (1924–1927)
  • Ambassador Extraordinary and Plenipotentiary, Belgium (1927–1933)
  • Envoy Extraordinary and Minister Plenipotentiary, Luxembourg (1927–1933)
  • Ambassador Extraordinary and Plenipotentiary, Brazil (1933–1936)
  • Ambassador Extraordinary and Plenipotentiary, Belgium (1937–1938)
  • Envoy Extraordinary and Minister Plenipotentiary, Luxembourg (1937–1938)
• Ronald J. Gidwitz (?–)
  • Ambassador Extraordinary and Plenipotentiary, Belgium (2018)
• Gordon D. Giffen (1949–)
  • Ambassador Extraordinary and Plenipotentiary, Canada (1997–2001)
• Rufus Gifford (1974–)
  • Ambassador Extraordinary and Plenipotentiary, Denmark (2013–2017)
• Walter Sherman Gifford (1885–1966)
  • Ambassador Extraordinary and Plenipotentiary, United Kingdom (1950–1953)
  • Ambassador Extraordinary and Plenipotentiary, United Kingdom (1950)
• Carl Joyce Gilbert (1906–1983)
  • U.S. Trade Representative (1969–1971)
• Mark D. Gilbert (1956–)
  • Ambassador Extraordinary and Plenipotentiary, New Zealand (2014–2017)
  • Ambassador Extraordinary and Plenipotentiary, Samoa (2014–2017)
• *Robert S. Gilchrist (?–)
  • Ambassador Extraordinary and Plenipotentiary, Lithuania (2019)
• Joseph Bernard Gildenhorn (1929–)
  • Ambassador Extraordinary and Plenipotentiary, Switzerland (1989–1993)
• Theodore E. Gildred (1925–)
  • Ambassador Extraordinary and Plenipotentiary, Argentina (1986–1989)
• *Keith R. Gilges (?–)
  • Chargé d’Affaires ad interim, Belize (2018)
• *Charles A. Gillespie Jr. (1935–2008)
  • Ambassador Extraordinary and Plenipotentiary, Colombia (1985–1988)
  • Ambassador Extraordinary and Plenipotentiary, Chile (1988–1991)
  • Chargé d’Affaires ad interim, Grenada ()
• John Joyce Gilligan (1921–2013)
  • Administrator of the Agency for International Development (1977–1979)
• *Harry Joseph Gilmore (1937–2015)
  • Ambassador Extraordinary and Plenipotentiary, Armenia (1993–1995)
• James S. Gilmore III (?–)
  • Representative of the U.S.A. to the Organization for Security and Cooperation in Europe (Vienna) (2019)
• *David R. Gilmour (1958–)
  • Ambassador Extraordinary and Plenipotentiary, Togo (2015–2019)
• *Samuel Patrick Gilstrap (1907–1989)
  • Ambassador Extraordinary and Plenipotentiary, Malawi (1964–1965)
• Callista L. Gingrich (1966–)
  • Ambassador Extraordinary and Plenipotentiary, Holy See (2017–2021)
• Rosemary Lucas Ginn (1912–2003)
  • Ambassador Extraordinary and Plenipotentiary, Luxembourg (1976–1977)
• Marc Charles Ginsberg (1930–)
  • Ambassador Extraordinary and Plenipotentiary, Morocco (1993–1997)
• Anthony H. Gioia (1941–)
  • Ambassador Extraordinary and Plenipotentiary, Malta (2001–2004)
• Donald Henry Gips (1960–)
  • Ambassador Extraordinary and Plenipotentiary, South Africa (2009–2013)
• David F. Girard-diCarlo (1943–)
  • Ambassador Extraordinary and Plenipotentiary, Austria (2008–2009)
• Mark Gitenstein (1946–)
  • Ambassador Extraordinary and Plenipotentiary, Romania (2009–2012)
• Michelle S. Giuda (?–)
  • Assistant Secretary of State for Public Affairs (2018)
• *April Catherine Glaspie (1942–)
  • Ambassador Extraordinary and Plenipotentiary, Iraq (1988–1990)
• George E. Glass (?–)
  • Ambassador Extraordinary and Plenipotentiary, Portugal (2017)
• James K. Glassman (1947–)
  • Under Secretary of State for Public Diplomacy and Public Affairs (2008–2009)
• *Jon David Glassman (1944–)
  • Chargé d’Affaires, Afghanistan (1989)
  • Ambassador Extraordinary and Plenipotentiary, Paraguay (1991–1994)
• Charles L. Glazer (1943–)
  • Ambassador Extraordinary and Plenipotentiary, El Salvador (2006–2009)
• Mary Ann Glendon (1938–)
  • Ambassador Extraordinary and Plenipotentiary, Holy See (2007–2009)
• Thomas Keith Glennan (1905–1995)
  • Representative of the U.S.A. to the International Atomic Energy Agency (Vienna) (1970–1973)
• *William Henry Gleysteen Jr. (1926–2002)
  • Ambassador Extraordinary and Plenipotentiary, Korea (1978–1981)
• *Maynard Wayne Glitman (1933–2010)
  • Ambassador Extraordinary and Plenipotentiary, Belgium (1988–1991)
• Maxwell Henry Gluck (1899–1984)
  • Ambassador Extraordinary and Plenipotentiary, Sri Lanka (1957–1958)
• *Edward William Gnehm Jr. (1944–)
  • Ambassador Extraordinary and Plenipotentiary, Kuwait (1990–1994)
  • Director General of the Foreign Service (1997–2000)
  • Ambassador Extraordinary and Plenipotentiary, Australia (2000–2001)
  • Ambassador Extraordinary and Plenipotentiary, Jordan (2001–2004)
• *Ronald D. Godard (1942–)
  • Chargé d’Affaires ad interim, Nicaragua (1993)
  • Ambassador Extraordinary and Plenipotentiary, Guyana (2000–2003)
• *Robert Frank Godec (1956–)
  • Ambassador Extraordinary and Plenipotentiary, Tunisia (2006–2009)
  • Ambassador Extraordinary and Plenipotentiary, Kenya (2013–2019)
• *Anthony F. Godfrey (?–)
  • Ambassador Extraordinary and Plenipotentiary, Serbia (2019)
• *George McMurtrie Godley II (1917–1999)
  • Ambassador Extraordinary and Plenipotentiary, Congo (Kinshasa) (1964–1966)
  • Ambassador Extraordinary and Plenipotentiary, Laos (1969–1973)
  • Ambassador Extraordinary and Plenipotentiary, Lebanon (1974–1976)
  • Assistant Secretary of State for East Asian and Pacific Affairs (Not commissioned; nomination withdrawn before the Senate acted upon it.)
• Paul Alan Goff (1941–)
  • Director of the Office of Medical Services (1988–1991)
• Robert Francis Goheen (1919–2008)
  • Ambassador Extraordinary and Plenipotentiary, India (1977–1980)
• Arthur Joseph Goldberg (1908–1990)
  • Representative of the U.S.A. to the United Nations (1965–1968)
  • Ambassador at Large (1977–1978)
• *Philip S. Goldberg (1956–)
  • Ambassador Extraordinary and Plenipotentiary, Bolivia (2006–2008)
  • Assistant Secretary of State for Intelligence and Research (2010–2013)
  • Ambassador Extraordinary and Plenipotentiary, Philippines (2013–2016)
  • Career Ambassador (2018)
  • Ambassador Extraordinary and Plenipotentiary, Colombia (2019)
• *Thomas Goldberger (?–)
  • Chargé d’Affaires ad interim, Egypt (2019)
• *Michael B. Goldman (?–)
  • Chargé d’Affaires ad interim, Fiji (2019)
  • Chargé d’Affaires ad interim, Kiribati (2019)
  • Chargé d’Affaires ad interim, Nauru (2019)
  • Chargé d’Affaires ad interim, Tonga (2019)
  • Chargé d’Affaires ad interim, Tuvalu (2019)
• *Ethan Aaron Goldrich (1966–)
  • Chargé d’Affaires, Belarus (2014)
• Irwin Steven Goldstein (1952–)
  • Under Secretary of State for Public Diplomacy and Public Affairs (2017–2018)
• *Christopher E. Goldthwait (1949–)
  • Ambassador Extraordinary and Plenipotentiary, Chad (1999–2004)
• *Rebecca E. Gonzales (?–)
  • Ambassador Extraordinary and Plenipotentiary, Lesotho (2017)
• William Elliott Gonzales (1866–1937)
  • Envoy Extraordinary and Minister Plenipotentiary, Cuba (1913–1919)
  • Ambassador Extraordinary and Plenipotentiary, Peru (1919–1921)
• Antonio Cornelius Gonzalez (1888–1965)
  • Envoy Extraordinary and Minister Plenipotentiary, Panama (1933–1935)
  • Envoy Extraordinary and Minister Plenipotentiary, Ecuador (1934–1938)
  • Envoy Extraordinary and Minister Plenipotentiary, Venezuela (1938–1939)
• *Raymond Emmanuel Gonzalez (1924–)
  • Ambassador Extraordinary and Plenipotentiary, Ecuador (1978–1982)
• Robert Crocker Good (1924–1984)
  • Ambassador Extraordinary and Plenipotentiary, Zambia (1965–1968)
• *James Eugene Goodby (1929–)
  • Ambassador Extraordinary and Plenipotentiary, Finland (1980–1981)
  • Ambassador Extraordinary and Plenipotentiary, Greece (Nomination not acted upon by the Senate; later declined a recess appointment.)
• *Mark A. Goodfriend (1957–)
  • Chargé d’Affaires ad interim, Hungary (2015)
• William Cassius Goodloe (1841–1889)
  • Minister Resident, Belgium (1878–1880)
• Robert F. Goodwin (1936–)
  • Ambassador Extraordinary and Plenipotentiary, New Zealand (Nominated on August 11, 1992. Did not serve.)
  • Ambassador Extraordinary and Plenipotentiary, Samoa (Nominated on August 11, 1992. Did not serve.)
• Eric Goosby (1952–)
  • Ambassador at Large (2009–2013)
• Abraham Lincoln Gordon (1913–2009)
  • Ambassador Extraordinary and Plenipotentiary, Brazil (1961–1966)
  • Assistant Secretary of State for Western Hemisphere Affairs (1966–1967)
• David F. Gordon (?–)
  • Director of Policy Planning (2007–2009)
• *George Anderson Gordon (1885–1959)
  • Envoy Extraordinary and Minister Plenipotentiary, Haiti (1935–1937)
  • Envoy Extraordinary and Minister Plenipotentiary, Netherlands (1937–1940)
• Philip H. Gordon (1962–)
  • Assistant Secretary of State for European and Eurasian Affairs (2009–2013)
• *Robert Charles Frost Gordon (1920–2001)
  • Ambassador Extraordinary and Plenipotentiary, Mauritius (1980–1983)
• Charles T. Gorham (1812–1901)
  • Minister Resident, Netherlands (1870–1875)
• Rose Eileen Gottemoeller (1953–)
  • Assistant Secretary of State for Arms Control, Verification, and Compliance (2009–2014)
  • Under Secretary of State for Arms Control and International Security Affairs (2014–2016)
• Kingdon Gould Jr. (1924–)
  • Ambassador Extraordinary and Plenipotentiary, Luxembourg (1969–1972)
  • Ambassador Extraordinary and Plenipotentiary, Netherlands (1973–1976)
• Richard W. Graber (1956–)
  • Ambassador Extraordinary and Plenipotentiary, Czech Republic (2006–2009)
• Henry Francis Grady (1882–1957)
  • Assistant Secretary of State (1939–1941)
  • Ambassador Extraordinary and Plenipotentiary, India (1947–1948)
  • Ambassador Extraordinary and Plenipotentiary, Greece (1948–1950)
  • Envoy Extraordinary and Minister Plenipotentiary, Nepal (1948)
  • Ambassador Extraordinary and Plenipotentiary, Iran (1950–1951)
• John Graham (1774–1820)
  • Chief Clerk (1807–1817)
  • Secretary of State ad interim (1817)
  • Minister Plenipotentiary, Portugal (1819–1820)
• *Pierre Robert Graham (1922–1988)
  • U.S. Permanent Representative to the United Nations Educational, Scientific and Cultural Organization (1969–1973)
  • Ambassador Extraordinary and Plenipotentiary, Burkina Faso (1974–1978)
• *Larry C. Grahl (1940–)
  • Chargé d’Affaires ad interim, Burkina Faso (1981)
• Frederic James Grant (1862–1894)
  • Envoy Extraordinary and Minister Plenipotentiary, Bolivia (1892–1893)
• Frederick Dent Grant (1850–1912)
  • Envoy Extraordinary and Minister Plenipotentiary, Austria (1889–1893)
• Hugh Gladney Grant (1888–1972)
  • Envoy Extraordinary and Minister Plenipotentiary, Albania (1935–1939)
  • Envoy Extraordinary and Minister Plenipotentiary, Thailand (1940–1941)
• *Ulysses Grant-Smith (1870–1959)
  • Envoy Extraordinary and Minister Plenipotentiary, Albania (1922–1925)
  • Envoy Extraordinary and Minister Plenipotentiary, Uruguay (1925–1929)
• *William Grant (?–)
  • Chargé d’Affaires ad interim, Qatar (2018–2020)
• *Gary Anthony Grappo (1950–)
  • Ambassador Extraordinary and Plenipotentiary, Oman (2006–2009)
• Jonathan Scott Gration (1951–)
  • Ambassador Extraordinary and Plenipotentiary, Kenya (2011–2012)
• Charles Hinman Graves (1839–1928)
  • Envoy Extraordinary and Minister Plenipotentiary, Norway (1905–1906)
  • Envoy Extraordinary and Minister Plenipotentiary, Sweden (1905–1913)
• C. Boyden Gray (1943–)
  • Representative of the U.S.A. to the European Union, with the rank and status of Ambassador Extraordinary and Plenipotentiary (2006–2007)
• David Gray Jr. (1870–1968)
  • Envoy Extraordinary and Minister Plenipotentiary, Ireland (1940–1947)
• *Gordon Gray (1956–)
  • Ambassador Extraordinary and Plenipotentiary, Tunisia (2009–2012)
• Isaac Pusey Gray (1828–1895)
  • Envoy Extraordinary and Minister Plenipotentiary, Mexico (1893–1894)
• Horace Greeley (1811–1872)
  • Envoy Extraordinary and Minister Plenipotentiary, Austria (1867)
• Alan Green Jr. (1925–2001)
  • Ambassador Extraordinary and Plenipotentiary, Romania (1989–1992)
• Grant S. Green (1938–)
  • Under Secretary of State for Management (2001–2005)
• James Stephen Green (1817–1870)
  • Chargé d’Affaires, Colombia (1853–1854)
  • Minister Resident, Colombia (1854)
• Joseph Coy Green (1887–1978)
  • Envoy Extraordinary and Minister Plenipotentiary, Jordan (1952)
  • Ambassador Extraordinary and Plenipotentiary, Jordan (1952–1953)
• Mark Green (1960–)
  • Ambassador Extraordinary and Plenipotentiary, Tanzania (2007–2009)
• *Marshall Green (1916–1998)
  • Ambassador Extraordinary and Plenipotentiary, Indonesia (1965–1969)
  • Assistant Secretary of State for East Asian and Pacific Affairs (1969–1973)
  • Ambassador Extraordinary and Plenipotentiary, Australia (1973–1975)
  • Ambassador Extraordinary and Plenipotentiary, Nauru (1974–1975)
• Steven J. Green (1945–)
  • Ambassador Extraordinary and Plenipotentiary, Singapore (1997–2001)
• *Joseph Nathaniel Greene Jr. (1920–2010)
  • Principal Officer, Egypt (1973)
• *Winthrop Stephenson Greene (1891–1970)
  • Chargé d’Affaires ad interim, Luxembourg ()
• James Lloyd Greenfield (1924–)
  • Assistant Secretary of State for Public Affairs (1964–1966)
• *David N. Greenlee (1943–)
  • Ambassador Extraordinary and Plenipotentiary, Paraguay (2000–2003)
  • Ambassador Extraordinary and Plenipotentiary, Bolivia (2002–2006)
• *Joseph Adolph Greenwald (1918–2000)
  • Representative of the U.S.A. to the Organization for Economic Cooperation and Development (Paris) (1969–1972)
  • Representative of the U.S.A. to the European Union, with the rank and status of Ambassador Extraordinary and Plenipotentiary (1972–1976)
  • Assistant Secretary of State for Economic, Energy, and Business Affairs (1976)
• David Lawrence Gregg (1814–1868)
  • Commissioner, Hawaii (1853–1858)
• Donald Phinney Gregg (1927–)
  • Ambassador Extraordinary and Plenipotentiary, Korea (1989–1993)
• John Hanaford Gregory (1875–)
  • Chargé d’Affaires ad interim, Nicaragua (1909)
• Richard A. Grenell (?–)
  • Ambassador Extraordinary and Plenipotentiary, Germany (2018)
• Walter Quintin Gresham (1832–1895)
  • Secretary of State (1893–1895)
• Nicolay Andrew Grevstad (1851–1940)
  • Envoy Extraordinary and Minister Plenipotentiary, Paraguay (1911–1914)
  • Envoy Extraordinary and Minister Plenipotentiary, Uruguay (1911–1914)
• *Joseph Clark Grew (1880–1965)
  • Chargé d’Affaires ad interim, Austria (1917)
  • Envoy Extraordinary and Minister Plenipotentiary, Denmark (1920–1921)
  • Envoy Extraordinary and Minister Plenipotentiary, Switzerland (1921–1924)
  • Under Secretary of State (1924–1927)
  • Ambassador Extraordinary and Plenipotentiary, Turkey (1927–1932)
  • Ambassador Extraordinary and Plenipotentiary, Japan (1932–1941)
  • Under Secretary of State (1944–1945)
  • Secretary of State ad interim (1945)
• *Robert E. Gribbin III (1946–)
  • Ambassador Extraordinary and Plenipotentiary, Central African Republic (1992–1995)
  • Ambassador Extraordinary and Plenipotentiary, Rwanda (1995–1999)
• Miller Grieve (1801–1879)
  • Chargé d’Affaires, Denmark (1852–1853)
• *Philip Joseph Griffin (1932–)
  • Chargé d’Affaires ad interim, Kuwait (1984)
• Richard J. Griffin (1949–)
  • Assistant Secretary of State for Diplomatic Security (2005–2007)
  • Director of the Office of Foreign Missions (2005–2007)
• Stanton Griffis (1887–1974)
  • Ambassador Extraordinary and Plenipotentiary, Poland (1947–1948)
  • Ambassador Extraordinary and Plenipotentiary, Egypt (1948–1949)
  • Ambassador Extraordinary and Plenipotentiary, Argentina (1949–1950)
  • Ambassador Extraordinary and Plenipotentiary, Spain (1951–1952)
• *Barbara J. Griffiths (1949–)
  • Ambassador Extraordinary and Plenipotentiary, Iceland (1999–2002)
• *Douglas M. Griffiths (1964–)
  • Ambassador Extraordinary and Plenipotentiary, Mozambique (2012–2015)
• William Morton Grinnell (1857–1906)
  • Third Assistant Secretary of State (1892–1893)
• Lloyd Carpenter Griscom (1872–1959)
  • Envoy Extraordinary and Minister Plenipotentiary, Iran (1901–1902)
  • Envoy Extraordinary and Minister Plenipotentiary, Japan (1902–1905)
  • Ambassador Extraordinary and Plenipotentiary, Brazil (1906–1907)
  • Ambassador Extraordinary and Plenipotentiary, Italy (1906–1909)
• John Austin Gronouski (1919–1996)
  • Ambassador Extraordinary and Plenipotentiary, Poland (1965–1968)
• *Christian Gross (1895–1933)
  • Chargé d’Affaires ad interim, Haiti (1927)
• Ernest Arnold Gross (1906–1999)
  • Legal Adviser (1947–1949)
  • Assistant Secretary of State for Legislative Affairs (1949)
• *Kenneth E. Gross Jr. (1953–)
  • Ambassador Extraordinary and Plenipotentiary, Tajikistan (2009–2012)
• *Marc Isaiah Grossman (1951–)
  • Executive Secretary (1993–1994)
  • Ambassador Extraordinary and Plenipotentiary, Turkey (1994–1997)
  • Assistant Secretary of State for European and Eurasian Affairs (1997–2000)
  • Director General of the Foreign Service (2000)
  • Under Secretary of State for Political Affairs (2001–2005)
  • Career Ambassador (2004)
• *Brandon Hambright Grove Jr. (1929–2016)
  • Ambassador Extraordinary and Plenipotentiary, Congo (Kinshasa) (1984–1987)
  • Director of the Foreign Service Institute (1988–1992)
  • Chargé d’Affaires ad interim, German Democratic Republic ()
• Edward Burd Grubb (1841–1917)
  • Envoy Extraordinary and Minister Plenipotentiary, Spain (1890–1892)
• *Stuart Edgar Grummon (1901–1960)
  • Chargé d’Affaires ad interim, Haiti (1930)
• Henry Anatole Grunwald (1922–2005)
  • Ambassador Extraordinary and Plenipotentiary, Austria (1987–1990)
• Gabriel Guerra-Mondragon (1942–)
  • Ambassador Extraordinary and Plenipotentiary, Chile (1994–1998)
• *Michael E. Guest (1957–)
  • Ambassador Extraordinary and Plenipotentiary, Romania (2001–2004)
• *Raymond Richard Guest (1907–1991)
  • Ambassador Extraordinary and Plenipotentiary, Ireland (1965–1968)
• *Bernard Anthony Gufler (1903–1973)
  • Chargé d’Affaires ad interim, Lithuania (1940)
  • Ambassador Extraordinary and Plenipotentiary, Sri Lanka (1959–1961)
  • Ambassador Extraordinary and Plenipotentiary, Finland (1961–1963)
• Harry Frank Guggenheim (1890–1971)
  • Ambassador Extraordinary and Plenipotentiary, Cuba (1929–1933)
• M. Robert Guggenheim (1885–1959)
  • Ambassador Extraordinary and Plenipotentiary, Portugal (1953–1954)
• Curtis Guild (1860–1915)
  • Ambassador Extraordinary and Plenipotentiary, Russia (1911–1913)
• Luis Guinot Jr. (1935–)
  • Ambassador Extraordinary and Plenipotentiary, Costa Rica (1991–1993)
• *Edmund Asbury Gullion (1913–1998)
  • Chargé d’Affaires ad interim, Finland (1944)
  • Ambassador Extraordinary and Plenipotentiary, Congo (Kinshasa) (1961–1964)
• Samuel Rene Gummere (1849–1920)
  • Envoy Extraordinary and Minister Plenipotentiary, Morocco (1905–1909)
• *Jon Gundersen (1945–)
  • Chargé d’Affaires ad interim, Ukraine ()
• Jeffrey Ross Gunter (?–)
  • Ambassador Extraordinary and Plenipotentiary, Iceland (2019)
• *Franklin Mott Gunther (1885–1941)
  • Envoy Extraordinary and Minister Plenipotentiary, Egypt (1928–1930)
  • Envoy Extraordinary and Minister Plenipotentiary, Ecuador (1930)
  • Envoy Extraordinary and Minister Plenipotentiary, Romania (1937–1941)
• *Jeri Schaeffer Guthrie-Corn (1949–)
  • Chargé d’Affaires ad interim (2012–2014)
• *Donald Keith Guthrie (1936–2010)
  • Chargé d’Affaires ad interim, Belize (1987)
• George Wilkins Guthrie (1848–1917)
  • Ambassador Extraordinary and Plenipotentiary, Japan (1913–1917)
• *Lino Gutierrez (1951–)
  • Ambassador Extraordinary and Plenipotentiary, Nicaragua (1996–1999)
  • Ambassador Extraordinary and Plenipotentiary, Argentina (2003–2006)
• Howard W. Gutman (1956–)
  • Ambassador Extraordinary and Plenipotentiary, Belgium (2009–2013)
• *Sheila Gwaltney (1954–)
  • Ambassador Extraordinary and Plenipotentiary, Kyrgyzstan (2015–2017)