Ida of Boulogne

• Ida of Lorraine, Countess of Boulogne, daughter of Godfrey III, Duke of Lower Lorraine; wife of Eustace II, Count of Boulogne
• Ida, Countess of Boulogne, daughter of Matthew of Alsace and Marie, Countess of Boulogne
• Ida of Boulogne, wife of Herman von Malsen and Conon, Count of Montaigu; a postulated daughter of Ida of Lorraine and Eustace II, Count of Boulogne