| John Sargent | |
| Office2: | Mayor of Cambridge, Massachusetts |
| Term Start2: | January 1855 |
| Term End2: | January 1860 |
| Successor2: | James D. Green |
| Term Start4: | 1844 |
| Term End4: | 1848 |
| Office3: | Member of the Massachusetts State Senate Middlesex County |
| Term Start3: | 1849 |
| Term End3: | 1849 |
| Office: | Member of the Massachusetts State Senate Middlesex County |
| Term Start: | 1876 |
| Term End: | 1876 |
| Party: | Whig, Free Soil, Republican |
| Birth Date: | June 21, 1799 |
| Birth Place: | Hillsborough, New Hampshire |
| Death Date: | December 5, 1880 (aged 81) |
| Death Place: | Cambridge, Massachusetts |
John Sargent (June 21, 1799 – December 5, 1880) was a Massachusetts politician who served in both branches of the Massachusetts legislature, as a member and President of the Cambridge Common Council, and as the Mayor of Cambridge, Massachusetts.
John Sargent was born in Hillsborough, New Hampshire on June 21, 1799. He married Lucetta Tuttle, and they remained married until her death in 1855.[1] John himself died on December 5, 1880, in Cambridge, Massachusetts.