Archduchess Maria of Austria (21 June 1528 – 26 February 1603) was Holy Roman Empress and queen consort of Bohemia and Hungary as the spouse of Maximilian II, Holy Roman Emperor and King of Bohemia and Hungary.
She served as regent of Spain in the absence of her father Emperor Charles V from 1548 until 1551, and in the absence of her brother Philip II, from 1558 to 1561.