United States Ambassador to Mexico List of ambassadors List of ambassadors

| Representative | Title | From_ | To_ | Appointed_by_ |
|---|---|---|---|---|
| Richard S. Spofford | Special Diplomatic Agent | 1854 |  | Franklin Pierce |
| John Forsyth Jr. | Minister | 1856 | 1858 | Franklin Pierce |
| William M. Churchwell | Special Diplomatic Agent | 1858 |  | James Buchanan |
| Alfred Mordecai | Special Diplomatic Agent | 1858 |  | James Buchanan |
| Duff Green | Special Diplomatic Agent | 1859 |  | James Buchanan |
| David R. Porter | Special Diplomatic Agent | 1859 |  | James Buchanan |
| Robert Milligan McLane | Minister | 1859 | 1860 | James Buchanan |
| Henry Roy de la Reintrie | Special Diplomatic Agent | 1860 |  | James Buchanan |
| John B. Weller | Minister | 1860 | 1861 | James Buchanan |
| Thomas Corwin | Minister | 1861 | 1864 |  |
| Robert W. Shufelt | Special Diplomatic Agent | 1862 |  | Abraham Lincoln |
| Lewis D. Campbell | Minister | 1866 | 1867 | Andrew Johnson |
| Marcus Otterbourg | Minister | 1867 |  | Andrew Johnson |