The National-Social Association was a political party in the German Empire, founded in 1896 by Friedrich Naumann. It sought to synthesise liberalism, nationalism and non-Marxist socialism with Protestant Christian values in order to cross the ideological front lines and draw workers away from Marxist class struggle. However, it never grew beyond a minor party of intellectuals which failed to gain mass support in elections.

Friedrich Naumann was a German liberal politician and Protestant parish pastor. In 1896, he founded the National-Social Association that sought to combine liberalism, nationalism and (non-Marxist) socialism with Protestant Christian values, proposing social reform to prevent class struggle. He led the party until its merger into the Free-minded Union in 1903. From 1907 to 1912 and again from 1913 to 1918, he was a member of the Reichstag of the German Empire.