Hugh of Cluny (ক্লুনির হিউ) also known as Hugh the Great or Hugh of Semur, served as the Abbot of Cluny from 1049 until his passing. Renowned as one of the most influential leaders of monastic orders during the Middle Ages, he played a pivotal role in shaping the religious and spiritual landscape of his time.

Hugh was descended from the noblest families in Burgundy. He was the eldest son of Seigneur Dalmas I of Semur and Aremberge of Vergy, daughter of Henry I, Duke of Burgundy. His father wanted him to be a knight, but recognizing his evident aversion to that, entrusted him to his grand-uncle Hugh, Bishop of Auxerre, for preparation for the priesthood. Under the protection of this relative, Hugh received his early education at the monastery school attached to the Priory of St. Marcellus.

At the age of fourteen he entered the novitiate at Cluny and at the age of fifteen, took his monastic vows. He later became prior. In 1048 he accompanied the Bishop of Toul, pope-elect Bruno von Egisheim-Dagsburg, to Rome, where he was consecrated Pope Leo IX. The following year Prior Hugh was elected abbot of Cluny, succeeding Odilo. Later in 1049 he attended the Council of Reims, and in 1054, the Council of Tours. In March 1058, he was in Florence, where he attended Pope Stephen IX on his deathbed.