| Order: | 73rd Doge of the Republic of Genoa |
| Term Start1: | 21 October 1581 |
| Term End1: | 21 October 1583 |
| Predecessor1: | Nicolò Doria |
| Successor1: | Gerolamo Chiavari |
| Birth Date: | 1522 |
| Birth Place: | Genoa, Republic of Genoa |
| Death Date: | 1586 |
| Death Place: | Genoa, Republic of Genoa |
Gerolamo De Franchi Toso (Genoa, 1522 - Genoa, 1586) was the 73rd Doge of the Republic of Genoa.
De Franchi Toso, considered a member of the "new" nobility in the Republic, was elected to the dogal title on 21 October 1581, the twenty-eighth in two-year succession and the seventy-third in republican history. His mandate was marked by the fight against banditry and, in foreign policy, the first controversies with the neighboring Duchy of Savoy which, over time, would result in a war between the two powers. He also worked in the local religious field with his assent for the construction of a new church in the historic center of Genoa. He ceased office on 21 October 1583. Probably appointed perpetual procurator after the favorable vote of the supreme trade unions. The former Doge died in Genoa during 1586.[1]