Archduchess Maria Anna of Austria (13 January 1610 – 25 September 1665) (German: Maria Anna von Habsburg Erzherzogin von Österreich also known as Maria Anna von Bayern or Maria-Anna Kurfürstin von Bayern) was Electress of Bavaria as the spouse of Maximilian I Elector of Bavaria. She also served as Regent of Bavaria during the minority of her son (from 1651).