| Native Name Lang: | ru |
| Birth Date: | September 21 (N.S. October 3), 1849 |
| Death Date: | October 22, 1918 (aged 69) |
| Occupation: | Astronomer, astrophysicist |
| Known For: | The crater on the Moon is named after Dmitry Dubyago |
| Children: | Alexander Dubyago (son) |
Dmitry Ivanovich Dubyago (Дмитрий Иванович Дубяго in Russian) (September 21 (N.S. October 3), 1849 - October 22, 1918) was a Russian astronomer and expert in theoretical astrophysics, astrometry, and gravimetry. A crater on the Moon is named after Dmitry Dubyago.[1]