Ida of Lorraine, saint and noblewoman (b. c. 1040)
Ida of Lorraine (also referred to as Blessed Ida of Boulogne) (c. 1040 – 13 April 1113) was a saint and noblewoman.

She was the daughter of Godfrey III, Duke of Lower Lorraine and his wife Doda. Ida's grandfather was Gothelo I, Duke of Lorraine and Ida's brother was Godfrey IV, Duke of Lower Lorraine.