Albert de Rethel (c. 1150 – 1195, in Rome) was provost of St. Lambert's Cathedral in Liège.
His maternal cousin Rudolf of Zähringen, the prince-bishop of Liège, entrusted Albert the administration of the diocese under the title of vice-Bishop before going on Crusade.
Henry VI, Holy Roman Emperor favoured Albert because he was a maternal-uncle of Empress Constance, while both Henry and Constance had planned to support Albert to be the bishop of Liège given the post was vacant.
At the Diet of Worms on January 13, 1192 the Emperor appointed his newly made imperial chancellor Lothar of Hochstaden, provost of the church of St Cassius in Bonn and brother of Count Dietrich of Hochstaden instead given that the election was under dispute.
Baldwin V accepted it and Albert relinquished while Albert of Louvain indignantly refused a financial settlement offered by the emperor, and the majority of the electors of Liège accepted the imperial decision because of the emperor's threat; but Henry I of Brabant brother of Albert of Louvain refused, and they obtained support from Pope Celestine III by May, around when Empress Constance was released and would later return to Holy Roman Empire.