Friedrich Ludwig Æmilius Kunzen (24 September 1761 – 28 January 1817) was a German composer and conductor who lived and worked for much of his life in Denmark.
From 1792 until 1794 he worked as musical director of the new Frankfurter National-Theater, where he put on Mozart's Don Giovanni and The Magic Flute.
During his stay in Frankfurt he married one of the foremost singers of the era, Johanna Margaretha Antonetta Zuccarini (1766-1842).
[citation needed] Aside from an occasional composition for the court and city, he composed the oratorio Opstandelsen (The Resurrection, 1796), the grand opera Erik Ejegod (1798), and various hymns and Singspiele.
On 28 January 1817, he suffered a stroke and died after an argument with Jens Baggesen over a plagiarism controversy concerning the opera Trylleharpen (The Magic Harp), which had been performed in 1806 in Vienna and Hamburg in German as Ossians Harfe, but without success.