Template:Buchanan cabinet
| Vice President | John C. Breckinridge (1857–1861) |  |
|---|---|---|
| Secretary of State | Lewis Cass (1857–1860) • Jeremiah S. Black (1860–1861) | |
| Secretary of the Treasury | ||
| Secretary of War | John B. Floyd (1857–1860) • Joseph Holt (1860–1861) | |
| Attorney General | Jeremiah S. Black (1857–1860) • Edwin M. Stanton (1860–1861) | |
| Postmaster General | ||
| Secretary of the Navy | Isaac Toucey (1857–1861) | |
| Secretary of the Interior | Jacob Thompson (1857–1861) | |