Ermesinde of Carcassonne, countess and regent of Barcelona (born 972)

Ermesinde of Carcassonne was Countess consort of Barcelona, Girona and Osona by marriage to Ramon Borrell, Count of Barcelona. She served as regent in these counties during the minority of her son Berenguer Ramon from 1018 until 1023, and during the minority of her grandson Ramon Berenguer I, Count of Barcelona between 1035 and 1044.