Friedrich Kluge (21 June 1856 – 21 May 1926) was a German philologist and educator.

He is known for the Etymological Dictionary of the German Language (Etymologisches Wörterbuch der deutschen Sprache), which was first published in 1883.

He studied comparative linguistics and classical and modern philologies at the universities of Leipzig, Strasbourg and Freiburg.

As a student, his instructors were August Leskien, Georg Curtius, Friedrich Zarncke and Rudolf Hildebrand at Leipzig and Heinrich Hübschmann, Bernhard ten Brink and Erich Schmidt at the University of Strasbourg.

[4][5] In 1900 he founded the journal "Zeitschrift für deutsche Wortforschung".