| Constance of Portugal | |
|---|---|
.png) Constance of Portugal, in António de Hollanda's Genealogy of the Royal Houses of Spain and Portugal (1534). | |
| Queen consort of Castile and León | |
| Tenure | 23 January 1302 – 7 September 1312 |
| Born | 3 January 1290 Kingdom of Portugal |
| Died | 18 November 1313 (aged 23) Sahagún, Crown of Castile |
| Burial | Sahagún, Spain |
| Spouse | |
| Issue | Eleanor, Queen of Aragon Alfonso XI, King of Castile |
| House | Portuguese House of Burgundy |
| Father | Denis, King of Portugal |
| Mother | Elizabeth of Aragon |
Constance of Portugal (pt: Constança; 3 January 1290 – Sahagún, 18 November 1313; Portuguese pronunciation: [kõʃˈtɐ̃sɐ]), was Queen of Castile by her marriage to Ferdinand IV.
She was the eldest child and only daughter of King Denis of Portugal and his wife Elizabeth of Aragon, later Saint.