| Karl Wilhelm Ernst von Waldenfels | |
| Birth Date: | 10 April 1772 |
| Death Date: | 15 June 1807 (aged 35) |
| Birth Place: | Bayreuth, Bayreuth |
| Death Place: | Kolberg, Pomerania |
| Allegiance: | Kingdom of Prussia |
| Branch: | Prussian Army |
| Serviceyears: | 1792–1807 |
| Rank: | Major |
| Battles: | |
| Awards: | Pour le Mérite |
Major Karl Wilhelm Ernst von Waldenfels (10 April 1772, Baireuth – 15 June 1807, Kolberg) was a Royal Prussian Army officer who served as Vice Commander of Kolberg during the French siege of that place in June 1772 and fell in its defence.[1]