Robert Marcellus Stewart | |
|---|---|
 | |
| 14th Governor of Missouri | |
| In office October 22, 1857 – January 3, 1861 | |
| Lieutenant | Hancock Lee Jackson |
| Preceded by | Hancock Lee Jackson |
| Succeeded by | Claiborne Fox Jackson |
| Personal details | |
| Born | Robert Marcellus Stewart March 12, 1815 Truxton, New York, U.S. |
| Died | September 21, 1871 (aged 56) St. Joseph, Missouri, U.S. |
| Political party | Democratic |
Robert Marcellus Stewart (March 12, 1815 – September 21, 1871) was the 14th Governor of Missouri from 1857 to 1861, during the critical years just prior to the American Civil War.