| James Hart | |
| Office1: | Ontario MPP |
| Term Start1: | 1883 |
| Term End1: | 1886 |
| Predecessor1: | Gideon Striker |
| Successor1: | John Allison Sprague |
| Constituency1: | Prince Edward |
| Party: | Liberal |
| Birth Date: | c. 1820 |
| Birth Place: | Lennox County, Upper Canada |
| Death Place: | Picton, Ontario, Canada |
James Benjamin Hart (c. 1820 - 1898) was an Ontario merchant and political figure. He represented Prince Edward in the Legislative Assembly of Ontario from 1883 to 1886 as a Liberal member.
He was born in Lennox County. In 1841, he married Sarah Ann Demorest. Hart served as reeve for Sophiasburgh Township. He lived in Picton.