Giovanni Gradenigo | |
|---|---|
 A grosso of Giovanni Gradenigo | |
| Doge of Venice | |
| In office 1355–1356 | |
| Personal details | |
| Born | c. 1280 |
| Died | 8 August 1356 |
Giovanni Gradenigo (died 8 August 1356) was the fifty-sixth Doge of Venice, appointed on 21 April 1355. During his reign, Venice signed a peace treaty with Genoa.