Timothy Pickering (July 17, 1745–January 29, 1829) was the third United States Secretary of State, serving in that office from 1795 to 1800 under Presidents George Washington and John Adams.

Pickering was born in Salem, Massachusetts, and graduated from Harvard University in 1763. He opposed the patriot cause early in the American Revolutionary War, but in 1777 he accepted General George Washington's offer to be adjutant general of the American army, and was widely praised for his work in supplying the troops during the remainder of the conflict.

After the first of two failed attempts to make money speculating in Pennsylvania frontier land, now-President Washington appointed Pickering commissioner to the Iroquois Indians, then named him to his cabinet as Postmaster General in 1791. He remained in the cabinet for nine years, serving as postmaster general until 1795, Secretary of War for a brief time in 1795, then Secretary of State from 1795 to 1800.

After a quarrel with President John Adams over Adams's plan to make peace with France, Pickering was dismissed from office in May 1800. He was named to the United States Senate as a senator from Massachusetts in 1803 as a member of the Federalist Party. He lost his senate seat in 1811, and was elected to the United States House of Representatives in 1812, where he remained until 1816. His congressional career is best remembered for his leadership of the New England secession movement (see Essex Junto and the Hartford Convention).

After Pickering was denied re-election in 1816, he retired to Salem, where he lived as a farmer until his death in 1829.

References

• Clarfield, Gerard. Timothy Pickering and the American Republic. Pittsburgh: University of Pittsburgh Press, 1980.
• Garraty, John A. and Mark C. Carnes. American National Biography, vol. 17, "Pickering, Timothy". New York: Oxford University Press, 1999.

|- style="text-align: center;" | width="30%" |Preceded by:
Henry Knox | width="40%" style="text-align: center;" |United States Secretary of War
1795 | width="30%" |Succeeded by:
James McHenry

|- style="text-align: center;" | width="30%" |Preceded by:
Edmund Randolph | width="40%" style="text-align: center;" |United States Secretary of State
December 10, 1795 – May 12, 1800 | width="30%" |Succeeded by:
John Marshall