| Order: | 139th Doge of the Republic of Genoa |
| Term Start1: | September 9, 1707 |
| Term End1: | September 9, 1709 |
| Predecessor1: | Stefano Onorato Ferretti |
| Successor1: | Vincenzo Durazzo |
| Birth Date: | 1653 |
| Birth Place: | Genoa, Republic of Genoa |
| Death Date: | 1726 |
| Death Place: | Genoa, Republic of Genoa |
Domenico Maria De Mari (Genoa, 1653 - Genoa, 1726) was the 139th Doge of the Republic of Genoa and king of Corsica.
Son of Stefano De Mari, and Livia Maria Lercari, he was born in Genoa in 1653. On 9 September 1707 Domenico Maria De Mari was elected by the members of the Grand Council the new Doge of the Republic of Genoa with 374 votes out of 596, the ninety-fourth in biennial succession and the one hundred and thirty-ninth in republican history. On November 12 he was solemnly crowned in the Genoa Cathedral in the presence of the Bishop of Savona Vincenzo Maria Durazzo. As doge he was also invested with the related biennial office of king of Corsica. Domenico Maria De Mari died in 1726.[1] [2]