Joseph Wilhelm Ernst, Prince of Fürstenberg (13 April 1699 - 29 April 1762) was a prince of Fürstenberg-Fürstenberg who changed his residence to Donaueschingen, at the head of the Danube, and thus converted the existing settlement into a town and constructed Schloss Donaueschingen.

[1] Born as a member of the House of Fürstenberg Joseph was the second son of Landgrave Prosper von Fürstenberg-Stühlingen (1662–1704) and his wife, Countess Sophie Anna Eusebia von Königsegg-Rothenfels (1674–1727).

On 2 December 1716 Joseph was awarded with the hereditary title of Fürst by Charles VI, Holy Roman Emperor.

[2] On 6 June 1723 he married Countess Maria Anna von Waldstein-Wartenberg, heiress of Pürglitz (1707-1756).

They had six children: In 1761 he married 37 years younger Countess Maria Anna von der Wahl (1736-1808).