John De Mott | |
|---|---|
 | |
| Member of the U.S. House of Representatives from New York's 27th district | |
| In office March 4, 1845 – March 3, 1847 | |
| Preceded by | Byram Green |
| Succeeded by | John M. Holley |
| New York State Assembly | |
| In office 1833 | |
| Personal details | |
| Born | October 7, 1790 Readington Township, New Jersey |
| Died | July 31, 1870 (aged 79) Lodi, New York |
| Political party | Democratic |
| Military service | |
| Allegiance |  New York |
| Branch/service | New York militia |
| Rank | Major general |
| Unit | Thirty-eighth Brigade |
John De Mott (October 7, 1790 – July 31, 1870) was an American businessman and politician who served one term as a U.S. Representative from New York from 1845 to 1847.