| Order: | 61st Doge of the Republic of Genoa |
| Term Start1: | 4 January 1559 |
| Term End1: | 4 January 1561 |
| Predecessor1: | Pietro Giovanni Chiavica Cibo |
| Successor1: | Paolo Battista Giudice Calvi |
| Birth Date: | 1495 |
| Birth Place: | Genoa, Republic of Genoa |
| Death Date: | 1577 |
| Death Place: | Genoa, Republic of Genoa |
Girolamo Vivaldi (Genoa, 1495 – Genoa, 1577) was the 61st Doge of the Republic of Genoa.
Born in Genoa around 1495, exponent of the Genoese noble family of the Vivaldi, he held various positions for the Genoese State among which procurator of the Republic, member of the college of Governors, mayor of the village of Sestri Levante and supreme syndicator.[1]
He was elected doge on 4 January 1559: the sixteenth in biennial succession and the sixty-first in republican history. In his mandate he worked to take measures for public order, he graced some French prisoners detained in the port of Castiglione della Pescaia. and also the Republic of Genoa, under his dogate, rejoiced at the peace reached between Spain by Philip II and the France of Henry II, that, indirectly, also brought benefits to the Genoese state.
When the doge's mandate ended on 4 January 1561, Girolamo Vivaldi preferred not to participate in public life any longer due to obvious health problems. He died in Genoa in 1577 and was buried inside the sanctuary of the Madonna del Monte.