Merzbach is a surname. It is the surname of: Paul Merzbach (1888–1943), Austrian screenwriter and film director Uta Merzbach (1933–2017), German-American historian of mathematics Yonah Merzbach (1900–1980), Rabbi of Darmstadt and later rosh yeshiva at Kol Torah Ely Merzbach (1950–), Israeli mathematician