Joseph Johann Michael Starzer (baptised 5 January 1726 – 22 April 1787) was an Austrian composer and violinist of the pre-classical period. He was active in Moscow, St. Petersburg and Vienna.
Starzer contributed to the formation of the Vienna Tonkünstler-Societät in 1771. With
Georg Christoph Wagenseil and Matthias Georg Monn he was a precursor of the First Viennese School. Starzer composed several ballets, symphonies, concerts, the Singspiel Die drei Pächter, and other orchestral works and chamber music.