Karl Adolf Lorenz (13 August 1837 – 3 March 1923) was a German conductor, composer, and music pedagogue.
Born in Köslin, his family moved to Stettin where he attended the Marienstiftsgymnasium (de) (a school) for 16 years.
In music, he studied counterpoint with Siegfried Dehn, piano and composition with Friedrich Kiel and instrumentation with choirmaster Wenzel Gährich, all at the Humboldt University of Berlin.
Three years before the death of Carl Loewe in 1869, Lorenz became his successor as music director and organist at the Jakobikirche, Stettin.
As composer, he achieved great success with his oratorio Winfried (1888), Otto der Grosse, (1890) Krösus, (1890) Die Jungfrau von Orleans, (1893) Golgatha,, (1903) Das Licht (1907), and the opera Harald und Theano (Hanover, 1893).