United States Ambassador to Colombia New Granada New Granada

| Representative | Title | Presentation_of_Credentials | Termination_of_Mission | Appointed_by |
|---|---|---|---|---|
| James B. Bowlin | Minister Resident | April 10, 1855 | May 20, 1857 | Franklin Pierce |
| George W. Jones | Minister Resident | August 29, 1859 | November 4, 1861 | James Buchanan |