| Frank Ellis Boynton | |
| Birth Date: | 10 July 1859 |
| Birth Place: | Hyde Park, Vermont |
| Death Place: | Old Fort, North Carolina |
| Nationality: | American |
| Field: | Botany |
| Work Institution: | Biltmore Estate |
| Author Abbreviation Bot: | F.E.Boynton |
Frank Ellis Boynton (July 10, 1859 – December 10, 1942) was a self-taught American botanist active in the Southeastern United States. He worked at Biltmore Estate with his brother, Charles Lawrence Boynton, and Chauncey Beadle. Boynton's dewberry, Rubus boyntonii was named in honor of Frank Ellis Boynton.[1]