thumb|right|Antique collection in the Erbach PalaceFranz Graf zu Erbach-Erbach (29 October 1754 - 8 March 1823) was a German nobleman and art collector.
Franz was born in Erbach im Odenwald in 1754 as the only son of Count Georg Wilhelm von Erbach-Erbach-Reichenberg (1686-1757) and his second wife Countess Leopoldine zu Salm-Grumbach (1731-1795). He had one survining half-sister Sophie Christine, Princess von Nassau-Saarbrücken (1725-1795) from his father's previous marriage to Countess Sophie Charlotte von Bothmer (1697-1748).
From 1769 to 1773, he studied politics and history in Lausanne, Strasbourg, and Paris. He also traveled extensively to London, Brussels, The Hague, Berlin, Dresden, and Italy. While he was in Rome, he met several people that would become influential in his life, among them Ennio Quirino Visconti and Johann Friedrich Reiffenstein.
As the Count of Erbach, he paid special attention to agriculture, trade, and transportation. Through the influences of Reiffenstein and Visconti, Franz started his own art collection. This collection is now housed by the Erbach Palace. Franz dedicated his completed art catalogue to Reiffenstein. He was also the pioneer of ivory carving in Erbach, and his ivory collection now belongs to the German Ivory Museum Erbach. He died at Erbach in 1823.
He married firstly Charlotte Luise Polyxena, Countess zu Leiningen (1755-1785) and had children:
After the death of his first wife, Franz married again, to her first cousin, Countess Luise Polyxena Charlotte Kolb von Wartenberg (1755-1844), widow of his cousin Count Friedrich August zu Erbach-Fürstenau (1754-1784) and daughter of Count Friedrich Karl Kolb von Wartenberg (1725-1784) and his wife, Countess Karoline Polyxene zu Leiningen-Dagsburg-Hartenburg (1728-1782). This marriage remained childless.