Duncan McArthur | |
|---|---|
 | |
| 11th Governor of Ohio | |
| In office December 18, 1830 – December 7, 1832 | |
| Preceded by | Allen Trimble |
| Succeeded by | Robert Lucas |
| Member of the U.S. House of Representatives from Ohio's 6th district | |
| In office March 4, 1823 – March 3, 1825 | |
| Preceded by | John Sloane |
| Succeeded by | John Thomson |
| Member of the Ohio Senate from Ross, Franklin and Highland counties | |
| In office 1805–1813 1821–1823 | |
| Preceded by | Abraham Claypool Joseph Kerr |
| Succeeded by | William Creighton, Sr. James Dunlap (1805–1813) David Crouse (1821–1823) |
| 12th Speaker of the Ohio House of Representatives | |
| In office December 1, 1817 – December 6, 1818 | |
| Preceded by | Thomas Kirker |
| Succeeded by | Joseph Richardson |
| Member of the Ohio House of Representatives from Ross and Franklin counties | |
| In office 1804–1805 1815–1816 1817–1818 | |
| Personal details | |
| Born | January 14, 1772 or June 14, 1772 Dutchess County, Province of New York, British America |
| Died | (aged 66–67) Chillicothe, Ohio, U.S. |
| Resting place | Grandview Cemetery |
| Political party | |
| Signature |  |
| Military service | |
| Allegiance |  United States |
| Branch/service |  United States Army |
| Years of service | 1812–1815 |
| Rank | Brigadier general |
| Commands | Army of the Northwest |
| Battles/wars | War of 1812
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Duncan McArthur (1772 – April 29, 1839) was a military officer and a Federalist and National Republican politician from Ohio. He served as the 11th governor of Ohio.
When first elected to state office as a representative, he was serving in the state militia during the War of 1812. He was later appointed as brigadier general in the U.S. Army. Shortly thereafter he was placed in charge of the Army of the Northwest, serving through 1817 and negotiating the Treaty of Fort Meigs of 1817 to ratify peace and land cessions with Native American tribes.