Mathias Lerch (Matyáš Lerch, Czech: [ˈlɛrx]) (20 February 1860, Milínov – 3 August 1922, Sušice)[1] was a Czech mathematician who published about 250 papers, largely on mathematical analysis and number theory. He studied in Prague and Berlin, and held teaching positions at the Czech Technical Institute in Prague, the University of Fribourg in Switzerland, the Czech Technical Institute in Brno, and Masaryk University in Brno; he was the first mathematics professor at Masaryk University when it was founded in 1920.[1]