Joseph Holt (January 6, 1807 – August 1, 1894) was U.S. Secretary of War and a U.S. Postmaster General under James Buchanan.
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| width="30%" |Preceded by:
Aaron V. Brown
| width="40%" style="text-align: center;" |United States Postmaster General
1859–1861
| width="30%" |Succeeded by:
Horatio King
