| Samuel S. Ellsworth | |
| State: | New York |
| Term Start: | March 4, 1845 |
| Term End: | March 3, 1847 |
| Birth Date: | 13 October 1790 |
| Birth Place: | Pownal, Vermont, USA |
| Death Place: | Penn Yan, New York, USA |
| Resting Place: | Lake View Cemetery |
| Party: | Democrat |
Samuel Stewart Ellsworth (October 13, 1790 – June 4, 1863) was an American politician who served one term as a U.S. Representative from New York from 1845 to 1847.
Born in Pownal, Vermont, Ellsworth attended the common schools.He moved to Penn Yan, New York, in 1819 and engaged in mercantile pursuits.Supervisor of Milo, Yates County from 1824 to 1828.He served as judge of Yates County 1824–1829.He served in the State assembly in 1840.
Ellsworth was elected as a Democrat to the Twenty-ninth Congress (March 4, 1845 – March 3, 1847).
He died in Penn Yan, New York, June 4, 1863.He was interred in Lake View Cemetery.