Ernst Fürstenheim (18 August 1836, in Köthen – 2 July 1904, in Berlin) was a German urologist.
He studied medicine in Berlin, Würzburg, Paris and London, obtaining his doctorate in 1861 with a thesis titled "De ratione, quae inter hypochondriam et hysteriam".
As a student, his instructors included surgeon Bernhard von Langenbeck and Jean Civiale, a pioneer of lithotrity.
[1] In 1863 he established a medical practice in Berlin, of which he specialized in diseases of the urinary tract.
[2] He is also credited with making improvements to the endoscope developed by Antonin Jean Desormeaux.