Adalbert may refer to:
- Adalbert (given name), an archaic masculine given name
- Adalbert (mystic) (8th century)
- Max Adalbert (1874–1933), German actor
- Adalbert of Egmond
- Adalbert of Magdeburg (d. 981), Apostle of the Slavs, first Archbishop of Magdeburg
- Adalbert of Prague (956–997), martyred Bishop of Prague and missionary
- Adalbert Stifter (1805-1868), Austrian poet