| Matilda II of Boulogne | |
|---|---|
.png) Matilde in Genealogia dos Reis de Portugal (António de Holanda; 1530–1534) | |
| Queen consort of Portugal | |
| Tenure | 1248–1253 |
| Countess of Boulogne | |
| Reign | 1216–1259 |
| Predecessor | Ida and Renaud |
| Successor | Adelaide |
| Co-rulers | Philip I (1223–1235) Afonso (1238–1248) |
| Born | 1202 |
| Died | January 1259 (aged 56–57) |
| Burial | Cistercian Abbey of Gomerfontaine (Trie-la-Ville, Oise department) |
| Spouses | |
| Issue | Joan, Countess of Nevers Alberic, Count of Clermont |
| House | Dammartin |
| Father | Renaud, Count of Dammartin |
| Mother | Ida, Countess of Boulogne |
Mahaut or Matilda II of Boulogne (also known as Mathilde, Maud de Dammartin; 1202 – January 1259) was Countess of Boulogne in her own right and Queen of Portugal by marriage to King Afonso III from 1248 until their divorce in 1253. She was the daughter of Ida, Countess of Boulogne and her husband and co-ruler Renaud, Count of Dammartin.[1] She succeeded her mother as Countess of Boulogne in 1216. She was the great-granddaughter of King Stephen of England.