Archduchess Maria Johanna of Austria was an Archduchess of Austria as the eleventh child of Empress Maria Theresa and Francis I, Holy Roman Emperor. She was originally meant to marry Ferdinand I of the Two Sicilies, however, the marriage plans were never finalised due to Maria Johanna's death due to smallpox.

Maria Theresa was ruler of the Habsburg dominions from 1740 until her death in 1780, and the only woman to hold the position suo jure. She was the sovereign of Austria, Hungary, Croatia, Bohemia, Transylvania, Mantua, Milan, Galicia and Lodomeria, the Austrian Netherlands, and Parma. By marriage, she was Duchess of Lorraine, Grand Duchess of Tuscany, and Holy Roman Empress.