Ida, Countess of Boulogne

Ida of Boulogne (c. 1160–1216) ruled the county of Boulogne in her own right from 1173, when her father Matthew of Alsace died, until her death. The elder daughter of Matthew and Countess Marie I, she was twice widowed before 1190.

In 1190 Count Reginald I of Dammartin abducted her; she became his wife and bore the future Countess Matilda II of Boulogne. Ida died in 1216.