Elizabeth of Vermandois, or Elisabeth or Isabel de Vermandois (c. 1085 – c. 1148), was the third daughter of Hugh Magnus and Adelaide of Vermandois and as such represented both the Capetian line of her paternal grandfather Henry I of France, and the Carolingian ancestry of her maternal grandfather Herbert IV of Vermandois,_Count_of_Vermandois. As the wife of two Anglo-Norman magnates, Robert de Beaumont, 1st Earl of Leicester and William de Warenne, 2nd Earl of Surrey, she is the ancestress of hundreds of well-known families down to the present time.
- Bef 1147