Hugh II de Montlhéry was a notable French nobleman from the 11th century, known for his role as the lord of Montlhéry, a fortified town near Paris. He belonged to the influential Montlhéry family, which played a significant part in the feudal system of medieval France. Hugh II's lineage included connections to various noble families, enhancing his political influence. Hugh II was also involved in the broader conflicts of his time, including the struggles between the Capetian dynasty and other noble factions. His actions and alliances contributed to the shifting power dynamics in the region, reflecting the complexities of feudal relationships during the medieval period.