Guglielmo de' Pazzi | |
|---|---|
| Lord of Civitella | |
 Arms of Pazzi family | |
| Reign | c. 1514 - 6 July 1516 |
| Successor | Antonio di Guglielmo de' Pazzi, II Lord of Civitella |
| Born | Guglielmo di Antonio de' Pazzi 6 August 1437 Republic of Florence |
| Died | 6 July 1516 (aged 78) |
| Nationality | Italian |
| Noble family | Pazzi |
| Spouse(s) | |
| Issue | 16 children |
| Father | Antonio di Andrea de' Pazzi |
| Mother | Nicolosa degli Alessandri |
Preview warning: Page using Template:Infobox noble with unknown parameter "religion"
Guglielmo di Antonio de' Pazzi, Lord of Civitella (Republic of Florence, 6 August 1437 - 6 July 1516) was an Italian nobleman, banker and politician from the Republic of Florence. He was also husband of Bianca de' Medici, sister of the Lord of Florence Lorenzo the Magnificent.