Johann Gottlieb Stephanie the Younger (19 February 1741 – 23 January 1800) was an Austrian playwright, director and librettist, most famously to
Mozart. Stephanie was born in
Breslau,
Prussia, but came to Vienna during the
Seven Years' War as a Prussian
prisoner of war. He was appointed to head the National
Singspiel, a favourite project of Emperor
Joseph II. He died in Vienna, aged 58.