Maud of Apulia (c. 1060 – c. 1112) was a member of the Norman D’Hauteville family and a daughter of Robert Guiscard and his second wife Sikelgaita, a Lombard princess, the daughter of Guaimar IV, Prince of Salerno. She was also known as Mahalda, Mahault, Mafalda and Matilda. She was the wife of Ramón Berenguer II, and thus Countess of Barcelona (1077–1082). After her husband’s death, she remarried Aimery I, the Viscount of Narbonne (1086–1108).