| Order: | 166th Doge of the Republic of Genoa |
| Term Start1: | September 22, 1760 |
| Term End1: | September 22, 1762 |
| Predecessor1: | Matteo Franzoni |
| Successor1: | Rodolfo Emilio Brignole Sale |
| Birth Date: | 1709 |
| Birth Place: | Genoa, Republic of Genoa |
| Death Date: | 1791 |
| Death Place: | Genoa, Republic of Genoa |
Agostino Lomellini (Genoa, 1709 – Genoa, 1791) was the 166th Doge of the Republic of Genoa.
On September 22, 1760 he was elected by the new Grand Doge of Genoa: the one hundred and twenty-first in biennial succession and the one hundred and sixty-sixth in republican history. His mandate reminds the treatment and subsequent elimination with Spain of some economic restrictions which in the past undermined the Genoese economy and trade. Once the dogato ceased on 10 September 1762, he still served the Genoese state in tasks and assignments, such as being sent to Corsica where, however, his management was below the expectations.[1]