Josef Franz, Archduke of Austria, Prince of Hungary (Josef Franz Leopold Anton Ignatius Maria; 28 March 1895 – 25 September 1957), was the eldest son of Archduke Joseph August of Austria and Princess Auguste Maria of Bavaria.
As his father was the last Palatine of Hungary and was briefly considered a possible King of Hungary in 1919–1920, Josef Franz was a potential crown prince of Hungary.
He was born during the reign of his maternal great-grandfather, Francis Joseph I of Austria, who was also his second cousin once removed on his father's side.