| Blanche of Portugal | |
| Infanta | |
| House: | Portuguese House of Burgundy |
| Father: | Sancho I |
| Mother: | Dulce of Aragon |
| Birth Date: | 1198 |
| Birth Place: | Kingdom of Portugal |
| Death Place: | Guadalajara, Crown of Castile |
| Place Of Burial: | Santa Cruz Monastery, Coimbra, Portugal |
| Religion: | Roman Catholicism |
Branca of Portugal (1198 - Guadalajara, c. 1240; pronounced as /pt/;) was a Portuguese infanta (princess), eighth child of Portuguese King Sancho I and Dulce of Aragon, was probably the twin sister of Berengaria, she was raised in the court with her father and his mistress "a Ribeirinha" and, when she was eight or ten years old, was sent to live with her sisters at the Monastery of Lorvão. She was a nun at a convent in Guadalajara and was interred at the Monastery of Santa Cruz in Coimbra where her mother was buried.