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In the United States, the chief of protocol is an officer of the United States Department of State responsible for advising the president of the United States, the vice president of the United States, and the United States secretary of state on matters of national and international diplomatic protocol. The chief of protocol holds the rank of ambassador and assistant secretary of state.
| # | Image | Name | Assumed office | Left office | President served under |
| 1 | | James Clement Dunn | February 4, 1928 | November 17, 1930 | Calvin CoolidgeHerbert Hoover |
| 2 | | F. Lammot Belin | November 17, 1930 | September 15, 1931 | Herbert Hoover |
| 3 | | Warren Delano Robbins | September 15, 1931 | June 11, 1933 | |
| 4 | | James Clement Dunn | June 11, 1933 | April 11, 1935 | Franklin D. Roosevelt |
| 5 | | Richard Southgate | April 11, 1935 | July 29, 1937 | |
| 6 | | George T. Summerlin | July 29, 1937 | January 15, 1944 | |
| 7 | | Stanley Woodward | January 15, 1944 | May 22, 1950 | Franklin D. RooseveltHarry S. Truman |
| 8 | | John F. Simmons | August 18, 1950 | January 31, 1957 | Harry S. TrumanDwight D. Eisenhower |
| 9 | Wiley T. Buchanan Jr. | February 4, 1957 | January 23, 1961 | Dwight D. Eisenhower | |
| 10 | | Angier Biddle Duke | January 24, 1961 | January 20, 1965 | John F. KennedyLyndon B. Johnson |
| 11 | | Lloyd Nelson Hand | January 21, 1965 | March 21, 1966 | Lyndon B. Johnson |
| 12 | | James W. Symington | March 22, 1966 | March 31, 1968 | |
| 13 | | Angier Biddle Duke | April 1, 1968 | September 26, 1968 | |
| 14 | | Tyler Abell | September 30, 1968 | January 20, 1969 | |
| 15 | Emil Mosbacher | January 21, 1969 | June 30, 1972 | Richard Nixon | |
| - | Marion H. Smoak | July 1, 1972 | March 1, 1974 (acting) | ||
| 16 | March 1, 1974 | March 30, 1974 | |||
| 17 | | Henry E. Catto Jr. | April 3, 1974 | July 1, 1976 | Richard NixonGerald Ford |
| 18 | | Shirley Temple Black | July 1, 1976 | January 21, 1977 | Gerald Ford |
| 19 | | Evan Dobelle | March 2, 1977 | May 22, 1978 | Jimmy Carter |
| 20 | | Edith H. J. Dobelle | November 3, 1978 | September 26, 1979 | |
| 21 | Abelardo L. Valdez | October 19, 1979 | January 21, 1981 | ||
| - | | Morgan Mason (acting) | January 21, 1981 | March 20, 1981 | Ronald Reagan |
| 22 | | Leonore Annenberg | March 20, 1981 | January 6, 1982 | |
| 23 | | Selwa Roosevelt | April 16, 1982 | January 20, 1989 | |
| 24 | | Joseph Verner Reed Jr. | May 21, 1989 | October 21, 1991 | George H. W. Bush |
| 25 | | John Giffen Weinmann | October 31, 1991 | January 20, 1993 | |
| 26 | | Molly M. Raiser | September 14, 1993 | July 24, 1997 | Bill Clinton |
| 27 | Mary Mel French | November 13, 1997 | January 20, 2001 | ||
| 28 | | Donald Ensenat | June 6, 2001 | February 18, 2007 | George W. Bush |
| - | | Raymond P. Martinez (acting) | February 18, 2007 | September 14, 2007 | |
| 29 | | Nancy Brinker | September 14, 2007 | January 20, 2009 | |
| 30 | | Capricia Marshall | August 3, 2009 | August 1, 2013 | Barack Obama |
| - | | Natalie Jones (acting) | August 1, 2013 | May 13, 2014 | |
| 31 | | Peter A. Selfridge | May 13, 2014 | January 20, 2017 | |
| - | Post vacant (January 20, 2017 – December 1, 2017) | ||||
| 32 | | Sean Lawler | December 1, 2017 | July 9, 2019 | Donald Trump |
| - | | Mary-Kate Fisher (acting) | June 24, 2019 | August 12, 2019 | |
| 33 | | Cam Henderson | August 12, 2019 | January 20, 2021 | |
| - | | Asel Roberts (acting) | January 20, 2021 | January 3, 2022 | Joe Biden |
| 34 | | Rufus Gifford | January 3, 2022 | July 28, 2023 | |
| - | | Ethan Rosenzweig (acting) | August 1, 2023 | January 20, 2025 | |
| 35 | | Monica Crowley | May 30, 2025 | Present | Donald Trump |