United States Ambassador to Colombia Republic of Colombia Republic of Colombia

| Representative | Title | Presentation_of_Credentials | Termination_of_Mission | Appointed_by |
|---|---|---|---|---|
| John Barrett | Envoy Extraordinary and Minister Plenipotentiary | November 27, 1905 | September 24, 1906 | Theodore Roosevelt |
| Thomas C. Dawson | Envoy Extraordinary and Minister Plenipotentiary | October 16, 1907 | April 25, 1909 | Theodore Roosevelt |
| Elliott Northcott | Envoy Extraordinary and Minister Plenipotentiary | August 13, 1909 | September 16, 1910 | William H. Taft |
| James T. DuBois | Envoy Extraordinary and Minister Plenipotentiary | November 18, 1911 | March 1, 1913 | William H. Taft |
| Thaddeus Austin Thompson | Envoy Extraordinary and Minister Plenipotentiary | August 30, 1913 | June 26, 1916 | Woodrow Wilson |
| Hoffman Philip | Envoy Extraordinary and Minister Plenipotentiary | February 22, 1919 | May 29, 1922 | Woodrow Wilson |
| Samuel H. Piles | Envoy Extraordinary and Minister Plenipotentiary | May 29, 1922 | September 17, 1928 | Warren G. Harding |