| Jared Warner Williams | |
| Image Name: | JWWilliams.jpg |
| Width: | 200px |
| Jr/Sr1: | United States Senator |
| State1: | New Hampshire |
| Party: | Democrat |
| Term1: | November 29, 1853August 4, 1854 |
| Appointed1: | Noah Martin |
| Preceded1: | Charles G. Atherton |
| Succeeded1: | John P. Hale |
| Order2: | 21st |
| Office2: | Governor of New Hampshire |
| Term Start2: | June 3, 1847 |
| Term End2: | June 7, 1849 |
| Successor2: | Samuel Dinsmoor, Jr. |
| Office3: | Member of the U.S. House of Representatives from New Hampshire's At-large district (Seat 3) |
| Term Start3: | March 4, 1837 |
| Term End3: | March 3, 1841 |
| Predecessor3: | Franklin Pierce |
| Successor3: | John Randall Reding |
| Office4: | Member of the New Hampshire Senate |
| Term4: | 1832–1834 |
| Office5: | Member of the New Hampshire House of Representatives |
| Term5: | 1830–1831 1835–1836 |
| Birth Date: | 22 December 1796 |
| Birth Place: | West Woodstock, Connecticut, U.S. |
| Death Place: | Lancaster, New Hampshire, U.S. |
| Profession: | Politician, Lawyer |
Jared Warner Williams (December 22, 1796September 29, 1864) was an American lawyer and politician from Lancaster, New Hampshire, who was a U.S. representative, the 21st governor of New Hampshire 1847 to 1849 and a United States senator.
Williams was born in West Woodstock, Connecticut, on December 22, 1796. He graduated from Brown University in 1818, studied at the Litchfield Law School, and became an attorney in Lancaster, New Hampshire.
A Democrat, he sat in the New Hampshire House of Representatives from 1830 to 1831, the New Hampshire State Senate from 1832 to 1834 and the New Hampshire House again from 1835 to 1836.
In 1836, he won election to the U.S. House of Representatives and he sat two terms, March 4, 1837, to March 3, 1841. In 1847, he was elected governor and served two one-year terms, June 3, 1847, to June 7, 1849.
After leaving the governorship, Williams was appointed Coos County Judge of Probate, a position he held until 1852. In 1853, he was appointed to the U.S. Senate, temporarily filling the vacancy caused by Charles G. Atherton's death, and he served from November 29, 1853, to August 4, 1854.
Williams died in Lancaster on September 29, 1864, and is buried in the Summer Street Cemetery there.