Hugo Ernst Heinrich Rühle (12 September 1824 – 11 July 1888) was a German physician born in Liegnitz (today Legnica, Poland). From 1842 to 1848 he studied medicine in Berlin, where he came under the influence of Rudolf Virchow (1821–1902) Benno Reinhardt (1819-1852) and Ludwig Traube (1818–1876). After graduation, he worked at the Allerheiligenhospital in Breslau, and in 1852 remained in Breslau as an assistant at the medical clinic of Friedrich Theodor von Frerichs (1819–1885). In 1859 he became director of the polyclinic and a professor at the University of Breslau.