Burchard or Bouchard or Buckard or Burchard Aosta, was Bishop of Aosta (1025–1032) and Archbishop of Lyon (1033–1034), under the name of Burchard III, and finally prior of the territorial abbey of Saint Maurice. Burchard was a son of Humbert I, Count of Savoy and Aosta and his wife Auxilia, who may have originated from Aosta and who would have been the sister of Anselm of Aosta, bishop from 994–1025.