Daniel Blumenthal (25 January 1860 in Thann, Haut-Rhin – 25 March 1930 in Paris) was the mayor of Colmar from 1905 to 1914 and an elected member of the Reichstag between 1903 and 1907. He worked as a lawyer first at the Landgericht Mülhausen and then at Alsace-Lorraine's Supreme Court at Colmar.