| D. Delos Ellsworth | |
| Birth Date: | 23 February 1931 |
| Birth Place: | Chandler, Arizona, U.S. |
| Death Place: | Mesa, Arizona, U.S. |
| Office1: | Member of the Arizona House of Representatives |
| Term Start1: | January 1, 1965 |
| Term End1: | December 31, 1969 |
| Office2: | Member of the Arizona Senate |
| Term Start2: | January 1, 1971 |
| Term End2: | December 31, 1975 |
| Party: | Republican |
| Spouse: | Alba[1] |
| Children: | 6 |
D. Delos Ellsworth (February 23, 1931 – December 9, 2013)[2] was an American politician. He served as a Republican member of the Arizona House of Representatives and the Arizona Senate.