| Office: | Second Lady of the United States |
| Vicepresident: | Hannibal Hamlin |
| Term Start: | March 4, 1861 |
| Term End: | March 4, 1865 |
| Term Label: | In role |
| Predecessor: | Mary Breckinridge |
| Successor: | Eliza Johnson |
| Birth Name: | Ellen Vesta Emery |
| Birth Date: | 14 September 1835 |
| Birth Place: | Minot, Maine, U.S. |
| Death Place: | Bangor, Maine, U.S. |
| Parents: |
|
| Children: | 2 |
Ellen Vesta Hamlin (Emery; September 14, 1835 - February 1, 1925) was the second wife of Vice President Hannibal Hamlin, and thus second lady of the United States from 1861 to 1865.[1] They were married a year after the death of his first wife Sarah Jane Emery in 1855 who was also her half-sister. She had two children with Hannibal Hamlin: Hannibal Emery, who later became the attorney general of Maine, and Frank.[2] [3] Hamlin also had four children from his first marriage: George Hamlin, Charles Hamlin, Cyrus Hamlin, and Sarah Hamlin Batchelder. She died in 1925 as one of the longest-living second ladies in history.