The Ansembourg Museum (Musée d’Ansembourg) is a museum in the Belgian city of Liège. It is housed in the hôtel d’Ansembourg on Féronstrée in the historic heart of the city.

Its collections originated as part of those of the Institut archéologique liégeois (IAL), founded on 4 April 1850. Its archaeological and decorative arts collections were displayed in the Prince-Bishops’ Palace, then in the university library, then in l’Émulation (the headquarters of the Société libre d’émulation, a literary, artistic and scientific society) and finally in a gallery solely devoted to the IAL’s collections in one of the wings of the Palace on 12 October 1874.