Horwitz is a surname, current among Ashkenazi Jews. It is derived from the Yiddish pronunciation of the name of the town of Hořovice in Bohemia.
Notable people with the surname include:
Bernhard Horwitz, chess playerBrian Horwitz, American major league baseball outfielderJacob H. Horwitz (1892–1992), American businessman, philanthropist and fashion innovator.Jerome Lester Horwitz, a.k.a. Curly Howard, of the Three StoogesMaksymilian Horwitz, aka Henryk Walecki (1877–1937), leader and theoretician of the Polish communist movementMorton Horwitz (born 1938), legal historian and law professorMoses Harry Horwitz, a.k.a. Moe Howard, of the Three StoogesPhineas Jonathan Horwitz (1822–1904), former Surgeon General of the United States NavyRalph Horwitz (later "Ralph Horween), American football player for Harvard Crimson and in the NFLRonald Horwitz, known as Ronald HarwoodSamuel Horwitz, a.k.a. Shemp Howard of the Three StoogesSteven Horwitz, American economistSusan B. Horwitz, American computer scientistSusan Band Horwitz, American biochemistTony Horwitz, American journalistWilliam Horwitz, analytical chemist, formerly at the US Food and Drug AdministrationYosef Yozel Horwitz, rabbi