Jonas Platt
| Jonas Platt | |
|---|---|
| Portrait of Platt, by Samuel F. B. Morse, 1828 | |
| Member of the New York State Senate | |
| In office July 1, 1809 – June 30, 1813 | |
| Member of the U.S. House of Representatives from New York's 9th district | |
| In office March 4, 1799 – March 3, 1801 | |
| Preceded by | John Williams | 
| Succeeded by | Benjamin Walker | 
| Member of the New York State Assembly | |
| In office July 1, 1795 – June 30, 1796 | |
| Personal details | |
| Born | June 30, 1769 Poughkeepsie, Province of New York, British America | 
| Died | February 22, 1834 (aged 64) Peru, New York, United States | 
| Political party | Federalist | 
| Spouse | Helena Livingston | 
| Relations | Charles Z. Platt (brother) | 
| Children | 8, including Zephaniah | 
| Parent(s) | Zephaniah Platt Mary Van Wyck Platt | 
Jonas Platt (June 30, 1769 – February 22, 1834) was an American lawyer and politician from New York. He was a member of the United States House of Representatives.