Bianca Maria Visconti
| Bianca Maria Visconti | |
|---|---|
| Duchess of Milan Regent of Milan Regent of Marche | |
| Bianca Maria Visconti in a portrait by Bonifacio Bembo, Pinacoteca di Brera, Milan | |
| Other names | Bianca Maria Sforza Blanca Maria | 
| Born | 31 March 1425 Settimo Pavese, Duchy of Milan | 
| Died | 28 October 1468 (aged 43) Cremona | 
| Noble family | Visconti | 
| Spouse(s) | Francesco I Sforza | 
| Issue among others... | |
| Father | Filippo Maria Visconti, Duke of Milan | 
| Mother | Agnese del Maino | 
Bianca Maria Visconti (31 March 1425 – 28 October 1468), also known as Bianca Maria Sforza or Blanca Maria, was Duchess of Milan from 1450 to 1468 by marriage to Francesco I Sforza.
She acted as regent of the Marche during her husband's absence in 1448. She also served as regent of the Duchy of Milan in 1462, during his illness, and again in 1466 between his death and the return of their son—the new Duke of Milan—who was absent at the time.