| Daniel Dewey Barnard | |
| Office: | United States Envoy to Prussia |
| Term Start: | September 3, 1850 |
| Term End: | September 21, 1853 |
| Preceded: | Edward A. Hannegan |
| Succeeded: | Peter D. Vroom |
| Office1: | Member of the U.S. House of Representatives New York |
| Term Start1: | March 4, 1839 |
| Term End1: | March 3, 1845 |
| Constituency1: | (1839–43) (1843–45) |
| Preceded1: | Albert Gallup |
| Succeeded1: | Bradford R. Wood |
| Term Start2: | March 4, 1827 |
| Term End2: | March 3, 1829 |
| Preceded2: | Moses Hayden |
| Succeeded2: | Timothy Childs |
| Office3: | Chair of the House Judiciary Committee |
| Term Start3: | 1841 |
| Term End3: | 1843 |
| Preceded3: | John Sergeant |
| Succeeded3: | William Wilkins |
| Birth Date: | July 16, 1797 |
| Birth Place: | Sheffield, Massachusetts |
| Spouse: | Sara Livingstone BarnardCatherine Walsh Barnard |
| Profession: | lawyerpolitician |
| Party: | AdamsWhig |
| Alma Mater: | Williams College |
Daniel Dewey Barnard (July 16, 1797 – April 24, 1861) was an American politician and a U.S. Representative from New York.
Born in Sheffield, Massachusetts, Barnard was the son of Timothy and Phebe (Dewey) Barnard. He attended the common schools and graduated from Williams College, Williamstown, Massachusetts, in 1818. He studied law and was admitted to the bar in 1821. He married Sara Livingstone in 1825; and married Catherine Walsh in 1832.[1]
Barnard began practice in Rochester, New York, and served as prosecuting attorney of Monroe County in 1826.
Elected as an Adams to the Twentieth Congress, Barnard served as U.S. Representative for the twenty-seventh district of New York from March 4, 1827, to March 3, 1829. He was an unsuccessful candidate for reelection in 1828 to the Twenty-first Congress. He traveled in Europe in 1831, and moved to Albany, New York, in 1832 and continued the practice of law. He served as a member of the State assembly in 1838.
Barnard was elected as a Whig to the 26th, 27th and 28th United States Congresses, holding office from March 4, 1839, to March 3, 1845. He served as chairman of the Committee on the Judiciary (Twenty-seventh Congress). As a leading intellectual in the Whig party, Barnard gave a number of speeches, including to the literary societies of Amherst College in 1839[2] and to Yale Phi Beta Kappa Society in 1846.
Not a candidate for reelection in 1844, Barnard resumed his practice. He was appointed Envoy to Prussia and served from September 3, 1850, to September 21, 1853.[3] He retired from active business pursuits in 1853 and engaged in literary pursuits, residing in Albany, New York.
Barnard died in Albany, New York, on April 24, 1861 (age 63 years, 282 days). He is interred at Albany Rural Cemetery, Menands, New York where he had given the dedication address in 1844.[4]