Wilhelm Winternitz (1 March 1835, Josefov (Jaroměř) Josefstadt (now a part of Jaroměř, Okres Náchod), Bohemia – 22 February 1917, Vienna) was a Czech-Austrian Jewish physician and hydropathist. He was an influential neurologist and hydropathist who at the time was commonly characterized as "the father of scientific hydrotherapy".
