| Guidobaldo da Montefeltro | |
|---|---|
 Portrait by Raphael, c. 1507 | |
| Duke of Urbino | |
| 1st Reign | 1482-1502 |
| Predecessor | Federico III da Montefeltro |
| Successor | Cesare Borgia |
| 2nd Reign | 1503–1508 |
| Predecessor | Cesare Borgia |
| Successor | Francesco Maria I della Rovere |
| Born | 25 January 1472 Gubbio, Duchy of Urbino |
| Died | 10 April 1508 (aged 36) Fossombrone, Duchy of Urbino |
| Spouse | Elisabetta Gonzaga |
| House | Montefeltro |
| Father | Federico III da Montefeltro |
| Mother | Battista Sforza |
Guidobaldo (or Guido Ubaldo) da Montefeltro (25 January 1472 – 10 April 1508), also known as Guidobaldo I, was an Italian condottiero and the Duke of Urbino from 1482 to 1508.