August von Rothmund (August 1, 1830 – October 27, 1906) was a German ophthalmologist from Volkach, Lower Franconia.
In 1853 he received his doctorate from the University of Munich, and furthered his studies in Berlin under Albrecht von Graefe (1828–1870); in Prague with Carl Ferdinand von Arlt (1812–1887) and in Vienna with Eduard Jäger von Jaxtthal (1818–1884). In 1854 he returned to Munich, where he became director of the surgical policlinic (Reisingerianum). In 1863 he was appointed "full professor", at the University of Munich, where he practiced ophthalmology until his retirement in 1900. He was the son of noted surgeon Franz Christoph von Rothmund (1801–1891).
In 1868 Rothmund was the first physician to describe a rare hereditary oculocutaneous disease that consisted of telangiectasia, erythema, congenital cataracts and bone defects, along with other symptoms. This disorder was to become known as the Rothmund-Thomson Syndrome; named in conjunction with British physician Matthew Sydney Thomson FRSE (1894–1969).