Ludwig Mauthner (13 April 1840 – 20 October 1894) was an Austrian neuroanatomist and ophthalmologist who was a native of Prague.
Later he was appointed assistant director of the Allgemeine Poliklinik, and in 1894 attained the chair of ophthalmology at the university.
In 1859, while still a student, Mauthner described a fibrous structure in the spinal cord of fishes that contained two large cell bodies in the animals' metencephalon.
Mauthner cells have large-diameter axons that run down the length of the spinal cord.
Mauthner wrote numerous treatises in the field of ophthalmology, including Die sympathischen Augenleiden, a book that was translated into English in 1881 as The sympathetic diseases of the eye.