Maria d'Ibelin, Countess of Jaffa

Maria d'Ibelin (born c. 1272) was the daughter of Philip d'Ibelin, constable of Cyprus, and Simone de Montbéliard, whose father Eudes de Montbéliard was bailli and constable of Jerusalem. In 1290 Maria married Guy d'Ibelin, titular count of Jaffa and Ascalon, and was styled lady of Ascalon and Naumachia.

Her children included Philip and John, who died at Kyrenia in 1316, Hugh, later seneschal of Jerusalem, and Maria, the first wife of King Hugh IV of Cyprus.