Ludwig Heusner (28 November 1843 in Boppard – 27 January 1916 in Giessen) was a German surgeon. He studied medicine at the universities of Berlin, Heidelberg, Würzburg, Bonn and Kiel, receiving his doctorate in 1868. He served as an assistant physician during the Franco-Prussian War, and following the end of hostilities, settled as a general practitioner in Barmen (presently part of the city of Wuppertal). In 1878 he was named senior physician at the hospital in Barmen, and in 1903 was awarded with the title of professor.