Wilhelm Lothar Maria, Freiherr von Kerpen (24 May 1741 – 26 December 1823) was an Austrian general.

He received his initial education at the court of the Elector of Trier Franz Georg von Schönborn before beginning his studies at the University of Würzburg.

[1] Kerpen joined the army of Habsburg Austria and rose to the rank of general officer during the French Revolutionary Wars.

After being promoted to Feldmarschall-Leutnant, he led a force against Barthélemy Catherine Joubert's French corps at Salorno, Klausen, and Brixen in March 1797.

[2] Through his daughter Karolina, he was a grandfather or Rudolf, 6th Prince Kinsky of Wchinitz and Tettau (who married Countess Wilhelmine of Colloredo-Mansfeld), and Count Joseph Sidonius Kinsky of Wchinitz and Tettau (who married Countess Marie Henriette Czernin of Chudenitz).