| Marie I | |
|---|---|
| Countess of Boulogne | |
| Reign | 11 October 1159–1170 |
| Predecessor | William I |
| Successor | Matthew |
| Born | 1136 |
| Died | 25 July 1182 (aged c. 46) St Austrebert, Montreuil |
| Burial | St Austrebert |
| Spouse | |
| Issue | Ida, Countess of Boulogne Matilda, Duchess of Brabant |
| House | House of Blois |
| Father | Stephen, King of England |
| Mother | Matilda I, Countess of Boulogne |
Marie I or Mary (1136 – 25 July 1182 in St Austrebert, Montreuil, France) was the suo jure Countess of Boulogne from 1159 to 1170. She also held the post of Abbess of Romsey for five years until her abduction by Matthew of Alsace, who forced her to marry him. She is one of several possible identities of the author Marie de France.