Alduin or Aldoin may refer to:
Alduin or Audoin (died 563/5), King of the Lombards from 546 to 560 Alduin I of Angoulême (died 916), Count of Angoulême from 886 Alduin II of Angoulême (died 1032), Count of Angoulême Aldoin (bishop of Cefalù) (died 1248) Alduin (dragon), the antagonist in The Elder Scrolls V: Skyrim
See also Aldwin (disambiguation) Hilduin (disambiguation) Anduin