Christian Adolph Klotz (13 November 1738 – 31 December 1771) was a German philologist and controversialist. He is a notable representative of the transition period between the Age of Enlightenment and Sturm und Drang.
Klotz, son of a senior church official, was born in Bischofswerda, Lusatia. He attended the gymnasium in Meißen and Görlitz. From 1758 until 1760, he studied at the University of Leipzig. In these years, he was already publishing his first philological works. Then he moved to the University of Jena, where he wrote polemic papers against Pieter Burman the Younger. Klotz defended his dissertation, qualified as a lecturer, and held lectures about Horace at Jena.
In 1762 he obtained the position of an associate professor and in 1763 that of a full professor from the University of Göttingen. In 1765 Klotz moved to Halle, where he served as professor of philosophy and eloquence (German: Professor für Philosophie und Beredsamkeit). There he became very popular for his literary creations and exerted a significant influence on the contemporary taste and thinking. Johann Georg Jacobi was among his supporters. Klotz published in various literary journals, among them Acta Litteraria, and introduced his students to Italian poetry as of Torquato Tasso. He got into controversy with the Allgemeinen Bibliothek, to which he had contributed.